I saw two Lemmy signature basses when I was out in Las Vegas in March 2006. They were at Ed Roman's (I know, I know...). I'd always thought they were the coolest looking basses, what with the three pickups, goth theme, oakleaf carvings, and gold hardware.
The dude working in Ed's told me that they were $15000....(they came with autographed photos of Lemmy and some other stuff I can't recall). I'm not joking, that's the price he quoted me. Suddenly, the Lemmy sig didn't seem that cool. I was still really glad to have seen and played one briefly. I think if one came up for sale for a decent price it'd be worth getting.
Cheers,
Will