I also have a few bottles of Gucci Pour Homme II
Also have backups of these < $100 fragrances:
Dirty English (Love the scent, reminds me of camping when I was younger - one of the few fragrances that actually evoke memories)
Chanel Allure Homme Edition Blanche (just plain love this one)
Dior Homme Sport (2008)
Dior Homme Sport (2012)
Mugler Pure Havane
Mugler Pure Malt
D & G The One
Two that immediately come to mind that I have amassed multiple bottles of are vintage versions of Giorgio for Men by Giorgio Beverly Hills and Captain by Molyneux. Both can still be had for under $100 and are two of my absolute favorites at any price.
If we are talking only current releases, then Padparadscha by Satellite and Costume National Homme by Costume National are both worthy, IMO (though I haven't done so myself as yet).
Vintage Hermes Bel Ami. Found a place across the street from work that had 6 sealed boxes tucked away in a lower drawer. Paid $89 for the first, and $79 for the second - because I "was willing to take that *old* stuff off their hands, for a small discount". Smells fantastic!
I'm planning on going back at least another time or two to claim some more before the end of the year. I'll have to wear a wig or something or they're going to start wondering why I keep coming back for more of that old juice, and check eBay pricing or something...
Also, Costume National Homme. Got a 50ml bottle the first time around as a semi-blind buy, and I'm now certain this is one of the few that will get used up. So, I feel like I need a backup 100ml bottle to ensure it's kept in supply for a long while.