I used to have no problem buying games for 49.99. In fact, I bought my fair share of 59.99+ games back in the day (Phantasy Stars, Final Fantasy II & III, N64 games, Street Fighter II, Killer Instinct, Koei games, etc). I don't remember games dropping much in price, so I knew that was the price I had to pay if I wanted to play the game.
Once PS1 publishers starting introducing Greatest Hits, I knew if I waited long enough I could get the games I wanted for more than half of what they originally cost. It's enirely probable that the disc media enabled the era of budget games. I never remember console cartridge media dropping to the prices we see today (4.95-19.99), at least, not the sheer number of titles we see today.
My point is, as long as games continue to drop in price over time, I won't be willing to shovel out 60 dollars (or even 40 or 50), unless it's a gotta play can't wait 10/10 title, coupled with a limited edition pre-order bonus. I have paid full price for two games in the past two years. One was Windwaker so I could get the OOT bonus, the other was Halo 2, so I could get the Tin case + DVD bonus.
If I know the game is going to drop, I've got the patience to wait it out.