MP # of ports compared to other managers

Okay, this may seem like a silly question, but it seems the the rate of new ports has tapered off and we're treading water at near 4000. No doubt that will creep up slowly, but I see Fink has roughly 8,000 and FreeBSD double that. Is that because they have more legacy software that we don't use? I just wonder what type of stuff they have that we don't, especially since it seems like we're not missing too much that people are asking for. What is it about our user base that makes us content with 1/2 the number of available ports? Or is it just me? Are we content with our available ports? Mark