Another option: Put the machine to sleep. I rarely restart. Most of the time is when new software updates happen, or lately rebooting to Windows Boot Camp. Unless you're not using the machine for more than a few days, leave it sleep. No more chime.
I like it too - it's a Mac thing, I guess. The "warm fuzzy" you get when booting up. It's actually got it's own back story: started in early '90s, went through a bunch of oddball sounds through the 90's, then came back with the 8600 series (I believe - or 9600, anyway - too late/early to go through each one myself) Since then, by high directive, the startup "shall remain the same.