Kind of thinking out loud here...
One bass that I would love to own would be an 8-string (the old school kind with doubled courses) Alembic. Not a Spyder - as much as I love the shape, I already have an Exploiter and I don't feel like I need another bass in that shape.
But recently I have begun playing 6-string bass (not the old school Fender VI/baritone type - already got a couple of those too) and a 6-string Alembic sounds like a cool idea too. If I were to get just a 6-string, I thought maybe a 6-string Tribute bass would be neat! I just double-checked -
the one over at Bass Central is a 5-string.
But THEN I realized - how about a doubleneck! 6-string bass on top, doubled-course 8-string on the bottom?!!! But why stop there - how about a non-doubled 8-string on top and a doubled 8-string on the bottom???!!! I think I've learned a lot from
the doubleneck I already own - for instance, I would want the bridge and tailpiece on the lower neck to be closer to the bottom of the body.
Actually, what I've really learned is that I don't want another doubleneck! But it was fun to imagine it!