While that's true, I don't find it problematic. With so much out there, I feel free to sample whatever draws my interest or even mild curiosity, but if it doesn't land with me, I have no issue putting a game down and moving on. I gave up on the idea that if I buy/own a game, I have any obligation to see it through to the end. No, the onus falls on the game to grab me, and if I've given it a reasonable go and I'm still not feeling it, it's on to the search for the next game that *will* do so. Sometimes there will be games that show promise and intrigue me even if I'm not fully invested, and I'll give those a bit more time and patience to strut their stuff, so to speak, though.
The bottom line for me is that, while there's surely plenty of trash out there, you'll never find the treasures if you're not willing to get dirty and do a bit of digging. That's a price that I'm willing to pay because when I find that rare gem, it feels so rewarding, and I add an experience to my collection of experiences within this medium that I'll always value and that I know I can return to in the future for good times.