I've thought same. Don't really regret spending money on vacations as those are great experiences I'll always remember. But say games on the shelf I will never finish? Even 20 bucks is too much for that.
I've saved way more than most everybody I know but even then, it could have been better!
I got too caught up in the "I have good money coming for yet X months" and suddenly X became less than 2.
And now I'm planning on starting a new busisness, so I'll be in pure investment mode. Hard times ahead, hopefully they pay off in the future.