Thats just taste though isn't it? I have gone through many basses, special and not, but my SRs have outlasted most of them and would probably be what I ended with when I downsized (although the EHB challenges that). I don't really need inspiring electronics, just something transparent and i find that they do that.
They hardly have that many product lines, although they have many within each line. OK, in a world of fender and gibson where you basically get 2 or 3 basses in different colours it seems a lot, but it isn't really.
Surprised on the comments of the 5006 though, I have a 5005, the b isn't dull (obvs no C) and its far from head heavy, maybe the other machinehead makes a difference but considering the weight of the body that is a surprise. Love the finish too, but then it is just wenge, and I love wenge so if you don't, you aren't going to like it!