so far this year i have "tested" around 20 games that seemed interesting to me. pretty much none are current AAA games. of those, 3 of them held my interest enough to want to play it past a day or 2 (and none of them were AAA games). i bought all 3 of them and even finished 2 of them . one has had an add-on DLC which i also purchased
without the opportunity to test out those games, i 100% assure you i'd have purchased exactly 0 games this year as i never will spend $60+ to try out a game and hope it interests me past a couple hours/days. $70+ to "pre-order" something is an even dumber idea i have no idea why actually exists.
i realize i am probably in the minority with it, but downloading it to try out for me is the same as getting a free demo from the developer. if i like it, i'll buy it, if i don't, i delete the demo and forget it existed. many games have demos on steam but rarely anything i might be interested in overall, so i get a "demo" copy elsewhere and try it out. generally if the game gets its first couple patches/updates early on and i'm still playing it, that tells me to go ahead and buy it