FarmerEd - I use the same "How much would it cost me to pay someone to do this? Hell I can buy a bunch of specialty tools for that much!" rationale. Dude that lives next door to me just paid some handyman $700 to replace about 12' of rotten fence and a gate. And he was as slow as molasses. With a framing nailer I could do that job in about 2 hours for about $50 worth of lumber...most of which I already have.
I've generally disliked renting gear unless its a one time use/heavy gear item. For example, I probably wouldnt buy a Bobcat (but heyyyy.....) or a ditch witch. But a tool I can reuse periodically is a no-brainer for me. By the time you rent it out, figure out how it works, notice that something on it is broken, argue with the guy when you bring it back over whether you broke it or got it that way, pay for it, haul it both ways, yada yada yada...I'd rather just buy one.
At this point i've got about 400' of rot and termite infested 17 year old redwood fence that I've propped up and made relatively dog-escape-proof...but its all going to have to be replaced soon. In a couple of years we're going to strip and reside the house and while I could borrow one of my BIL's guns to help his crew, it'd be pretty nice to be able to work on it when he (and his tools) arent around.
I'm always whacking little wood projects together...just made a small potting table to put the dozen strawberry plants my wife wanted up off the ground...framed in a whole house fan...built a giant dog house not that long ago...so the smaller guns would come in handy.
So its not like the stuff isnt gonna get used. But its not going to get the use patterns my power drill and reciprocating saw get.
As far as the big noisy compressor, based on a few comments above I was starting to think about just getting a big one with a lot of SCFM (which the medium to larger Kobalt ones seem to have), leave it in the garage and get a couple of extra lengths of hose to reach around the house and most areas of the yard...wheel it out to any remote areas during fence work.
That PC amazon item would be perfect if it included a framing nailer. Thats where i'm stuck. I cant find a decent framing nailer that doesnt cost $200+ except for that costco kit that has the brad nailer and stapler included. And that pairing (either way) shoots me over $500
But if I can get away with $130-150 for one of the Kobalt compressors and $200 for the costco kit, I've got the 3 guns I need, no duplicates, a bigger/stronger compressor, and i'm in the $330-350 range...