Around 275.
I have 9 full 15-pan's palettes, almost all the pre-made Quads (I collect them), several holiday palettes and other LE palettes. And a whole bunch of pot form shadows I haven't gotten around to depotting, not too mention all the backups and special packaging pots like Belle Azure, Lure & Barbie. And that doesn't include pigments or paints, you'd need to add another 30 to that total.
Yes, I know, I'm sick. My name is Yolanda and I am a MAC Addict.