What has discouraged us from going with an estate sale:
1) Their objective is not to get the highest price, it's to sell everything. A percentage on a low price is better than no sale for the estate sale company. First day prices are low, second day is 25% off, third day is 50% off everything is not atypical. Then the estate sale folks will take 25-40% of the total sale $. And I've read the people who attend estate sales are looking for ridiculously low prices, possibly for resale, they're not going to pay top dollar for anything.
I think this is basically true. If you as an individual are willing to put the same effort or more into selling items as will the estate sale people then you will almost certainly net more money.
Looking at it a bit more deeply:
I think that estate sale stuff can really fall into 2 categories -- garage sale items and more valuable items.
For garage sale items I have no doubt what you say is true and people coming to the sale are looking for garage sale prices.
For the more valuable items I think it is a bit more complex. A big part of what estate sale people do is advertise the estate sale. They probably do a better and more thorough job of it than most of us can do. The garage sale part of it I think I can do just as well as the estate sale company (if I wanted to), but I know I don't have the means and knowledge to advertise the other stuff.
That said -- there is no doubt that many people who come to buy at an estate sale probably are looking to buy something to resell. They have to buy at a low enough price to make a profit.
I could perhaps sell some of that stuff for more money. But I am not sure I would be able to advertise as effectively to get the buyers in the house to buy my mom's more collectible items.
Still -- if I did it all myself I could perhaps net more money even so. But it would take a lot of my time and I am not sure I could get the buyers in the same way as an estate sale company.
PLUS
2) Estate sales can take months between sorting, staging, pricing, holding the sale.
I am a bit puzzled by this. There is going to be about 30 days between my meeting with the estate sale company and the sale occurring. It would actually be a week less but for the fact of the intervening Thanksgiving holiday. So -- most of the time it is a 3 week process (subject to the estate sale company availability).
I guess some highly valuable sales could take longer to do or maybe the estate sale company is booked. But I just don't see it most of the time being months.
Now -- I did spend some time to go through my mom's stuff first but I would have done that even if I was selling everything myself or tossing it or donating it.
If I sell stuff on eBay, I can sell everything in two weeks (list for auction one week, ship the next) if I am willing to take below market prices like the estate sale folks do.
I am sure that for many many items you can sell it yourself on eBay and may even net more money. Part of it depends on how much eBay worthy stuff you have. For a lot of people there are many items that are collectively worth a fair amount but each item might be worth $20 or $30. I figured that if I eBayed stuff it would take months unless I just wanted to devote all my time to eBay. But -- if you have only a few items to eBay or you want to really devote yourself to it for a time, then this is very much a viable
3) My sister lives in the house, and we're told she has to remove all her stuff for the sale, we can't just seal off a few rooms with her belongings. She'll be living in the house after the estate sale and we're not keen on moving her stuff out, and then back in again for a sale that will net 5-10% (a number we've heard) of what we'd make overall.
That would definitely give me some pause. Have you talked to more than one company? I would think sealing off might work. There are also companies that can do an offsite sale and that might work better for your situation.
I am not sure what you mean by a sale that will net 5-10% pf what we'd make overall. Do you mean the estate sale will net you only 5 to 10% of you would net overall if you sold everything yourself? Maybe. Although I don't think I could do that well selling on my own. I think I could do better but I would have to be able and willing to do the sale all on my own.
I am not trying to discourage anyone from selling on their own. If you can do that effectively, then it clearly nets more money. I am more saying it is financially worth it as compared to simply throwing out or donating everything (I recognize people can have non-financial reasons for choosing to donate).