That also assumes you benefit from playing them day one.
There are plenty of games that I would play day one if it’s available. But if not, then I would happily wait and buy it when it’s cheaper. Also, the ownership adds to the value if I’m not keeping it all the time.
So if I would have waited until the game is $40, I’m saving $40 max. But also, I’ll still have it 2 years from now when it’s worth $25, assuming I want to play it again. So it maybe saved me $15, depending how you look at it.