Quoted from Blindseer:Why do you want to lose money? When I buy its only after playing it for a few hours in real life, Pinball Arcade if possible, and researching issues and availability of parts. I avoid new games because they haven't stood the test of time.
a couple hundred dollars adds up to a color dmd
Honestly I feel like you should be prepared to lose a few hundred on any fully working game you buy. It could break and not be worth fixing, it could just go down in value, etc. Or maybe it goes up in value and you luck out. Who knows, hopefully it balances out at worst. Plus you got to own and play the game! Some value loss is normal, you got your 'plays' out of it. If it's a NIB, then you also got the great box opening, new game smell experience. There's probably a few hundred dollars in wiggle room on many transactions. Or a few hundred dollars in rebuild parts I'm going to put into a game.
Learning the game is part of the experience to me. If you've already spent a lot of time on the game before buying, that's lost time and coin drop on a (probably) sub par game/experience. Plus time out of my day I spend playing the game. It's just way too much to think+worry about
I've owned 60+ games and only maybe 10-15 I'd ever played before purchasing them. Most of those turned out not to be keepers. The games that seem the funnest the first few plays I gave them rarely had staying power. Sometimes I played a game elsewhere and didn't like it much at all, but then picked one up cheap on a whim and loved it.