I love attract mode sounds. Everything I have that has them has them turned on. I'm working on Pole Position right now, not because I like the game... I just want the *beep beep beep booooooooop* sounds.
So far I have Galaga, Ice Cold Beer, Golden Tee, Rush n Attack (or Time Pilot 84... depends on what board I have in), all with attract mode sounds... Once I get Tron back home, I'll be pulling the resistor that cuts off sounds in attract mode on it as well.
The only game I have that I REFUSE to turn sounds on in attract mode, is Route 16... 15 minutes of that music will make you want to strangle a puppy... no joke.