Don't get me wrong guys, I have some of those hazards freight tools myself! But I know from experiance the ones I do have are for like is being said, crap I need but will use very seldom, some ONCE.
But I know from experiance as well, if I bought better tools, for the same jobs, I would harvest better results!
I have an airless sprayer, it was messier using it on my deck, but for 20 bucks I bought it for one reason, paint a tool shed, now it made one other job and became a throw away when the 3 decks were done. I found it not worthy of that large and flat of surface, my buddies Wagner was much more even.
I found this out years ago with cheap paint, and cheap brushes, good paint made for less coats, and going from cheap paint brushes to expensive ones made me look a lot better of a painter than I am!
I understd the what you can afford as well as anyone, forced to retire on a 22 year pension after a 42' fall landed me on my head and right shoulder in 1991! I learned real quick it was a lot cheaper to save and wait to buy quality, as I couldn't afford to buy over and over never getting ahead on my small fixed income.
Like Sam-TX said, I've found it profitable in most cases, but like high end custom guns, (I'm a competative target shooter), as well as Buying used bikes, Only Harleys, and yes too enen tools, use em a while, and when your ready to move them, we'll I usually expect what, or more than I paid..
But trust me, a welder or a tourch outfit, can really handicap even a professional, let alone someone wanting to see if they can do it.
But I have plenty of get me by tools for the same reason you guys do, at least I can Coble something up if I have to, rather than than spend big bucks for something I may never use again, or like like usually at least not soon enough to remember where the heck I put it the last time I did need it?????