How many amps do you own?

Just wondering how many amps people tend to use/own. At the moment I've just got a DI pedal and a small, 15w practise amp. Tempted to get a Rumble 100 but also looking at a 500w Tone Hammer. I'm not gigging so have no immediate need for any of it but I was wondering, do people get 1 amp for every situation? Or just get 1 amp/DI pedal that does it all?