Seems to me that if you have guns stacked so deep that you can no longer get into either of your reloading rooms, you may have gone too far.
Actually, the page at hobbiesbase.com referenced earlier seemed to hit the nail on the head. Basically if your hobby is interfering with everyday normal human activity it's time to take a look at yourself.
On the other hand, if you think that owning more than 5 guns makes you a gun nut, you may be an anti-gun nut. Hey, I like that - kind of a Foxworthy quality to it.
If you think that every rifle that looks scary is an AK47, you might be a hippie.
If you think that a Glock is an Assault Weapon, you might be an hippie.
If you have a Visualize World Peace bumper sticker on your Prius, you might be a hippie.
If you are reading this from a $5000 Apple laptop in a tent in a city park, you might be a hippie.
If you think that Colt Peacemaker is the name of the guy at the local pot co-op, you might be a hippie.
If you think that a barrel shroud is the "shoulder thing that goes up", alright, I'll give it a rest...