I have 7, mainly because my weekly training days are back-to-back-to-back-to...
3 BJJ gi. Two Gameness Pearls (white/black), which I love, as they have a baggier fit and I can hot wash/dry them as much as I like. I also have a white Atama. I'm not too sold on it, because it feels like it's made for someone with a slim build, and I'm built like a not-as-ripped Hector Lombard. It came with a membership to my current club, otherwise, I doubt I would have gotten it.
4 judogi. Two Fuji single weaves (white/blue), which were good when I was first starting, because they're dirt cheap ($40 each), and because they air dried pretty fast. I also have two Mizuno Yusho Comps (white/blue), which are very recent purchases that I got for competition. They feel like silk body armor, for lack of a better description. I love them, and I doubt I'll wear the Fujis anymore unless the weather gets too hot. My one and only complaint is that they take FOREVER to dry, which I think is a side effect of them being pseudo double weaves.