If my hunch was right and the game is only “ok”, but I got a few hours of enjoyment out of it for only a few bucks, I don’t have any buyers remorse.
I wish they had a free trial for an hour or two, that would be ideal.
I'd much prefer to install the game, play, and get a dialog "your trial is over, would you like to buy to continue?" and I can pay at that point.
on the positive side i did notice a fair number of demos pop up on steam lately, which for those that i have tried, let you play the first few levels of a game, which depending on the game is even better because there is no time limit at all. and no need for a credit card either.
If you bought a game for 60€ and played it for 20-30 hours but didn't finish it, I still count it as a net positive. 2€/hour for a good time, it's hard to beat that.
Unless you're Papa Burch: "If you watch Paul Blart: Mall Cop seven times in a row, it's better than Citizen Kane, The Godfather, and Gone With The Wind combined."