Azodin Kaos, to be exact. That's the only Azodin under $100.
Spyder has a few under $100: Victor, Sonix, Xtra. Essentially the same guns, just a few minor aesthetic differences. ANS has the Sonix still, good if you want the full foregrip; if not, the newer Victor is cheaper.
Empire is keeping the ol' Piranha ER3 alive (under the Empire name now), which is nice to see. Never owned or shot a Piranha, but i remember they used to be big contenders with spyders, and and really fell under the radar, which always seemed unfair to me.
Tippmann Gryphon is probably the next one i can think of. Get a whole package for $99 new. Kinda cheesy looking, and not as compact, but tons better than the visual disaster that was the Triumph.