Is there an end.......ever?

Well I am nearing the point where I am happy with the sound of my system, and starting to funnel my funds into software. I have a modest CD collection and with all of the music out there that I want I don't think I will be happy with my software for a very long time(if ever!). So the question is: are any of you out there happy with the size of your music collection that is to say not buying much if any?

For the record I have 1000+ cd's and could easily make that 5 fold, if I had the money burning a hole in my pocket that bad :) and I am sure I would have missed many "must haves" it is a curse!! Any thoughts please share.
~Tim