I've kept the number of lenses more or less the same for over a year now. But I still have 12, and 4 of them are in the 50/55 range... and I have two 28mm 2.8 lenses... but only because they were both cheap
Today I almost bought another one... a Pentax-M 135mm 3.5 (sold my A 135 2.8 a couple weeks ago and wanted a replacement). But the lens was already sold. I might get a Sears now instead. But that would put me over 12... (I got a 24 and a 28 the day I sold the 135 - had to use the money before it got spent on something else...)
Cameras, I only have 3 Pentaxes (4 if you count the compact RZ18...)
At least in my case, the good thing is that it's quite a cheap hobby. None of my bodies or lenses was expensive, and everything I own doesn't even add up to a thousand dollars. So in that sense, it's fun and it's not breaking the bank. Despite what my wife thinks...