Luckily, wii game prices drop fast.
Are you joking? Because pretty much all the games worth owning (i.e. first party games) come out at $50 and never drop.
don't mean to say this is for everyone, but Sin and Punishment 2 was $8 at my nearest Target a few weeks ago, and I picked up Red Steel 2 for under $5 new (pretty good game, btw).
oh, and Metroid Other M was $20 on Amazon this past week.