Im curious who has the most domains registered that they arent really using like domains you registered for a business venture etc, that are sitting there reserved, but not in use....

I think we prob. have about 20, im sure theres some out there with tons more

I think I have about 20 too :D

I can beat it: ~ 30 - http://www.domainwebshop.com.
But most of them are for planned ventures, not just for adding another domain...

prob 10

There was someone at Sitepoint (maybe here too?) who had over 1,000 (not quite sure of the exact number, but it was *quite* a few).

Me, just 50-ish

Mid 50's but will increase once the .biz is released :) I hope to launch a site or two this summer which will utilize a few.