Now that eBay has gotten more commercial and has more things that are "buy it now", it's a good place to go for things that don't get free shipping on Amazon. Yes, I know, Prime members get free shipping. I don't pay for Prime. There's plenty of $20 items that on Amazon would be $26 with shipping, whereas they're $20 on eBay.
Back in the early days, when almost everything was an auction, it was kind of entertaining to bid. I haven't participated in a "bid" buy in a long time...everything is "buy it now" lately. I used to use an "auction sniper" application; put in snipes against a bunch of auctions which are scheduled to trigger just seconds before each auction ends. If one snipe succeeded, the rest of the scheduled snipes would get cancelled. So I'd sit down, set up a bunch of snipes, and forget about it. Easy! Often I'd get a "steal" deal on something. Often I'd get nothing too, but it was entertaining. Nowadays, there's nothing on eBay worth sniping because they're all professional sellers...no "steals" to be had.