Lots of good healthy debate in here.
Trust me when I say I've combed over every possible quiver option there is. I think about bikes an unusually large amount, even around these parts. Ask Morgan if you don't believe me, he's heard this debate in my mind a thousand times.
If money and space weren't factors but I still wanted to have as multi-use and practical of a quiver as possible I'd say my dream quiver would be:
- Touring / CX road bike
- Steel hardtail, surely Chromag built by Chris. DJ and XC-able.
- 6" trail/AM shore-dialed bike for all up-and-down shredding
- 8" balls-to-the-wall DH bike built to be light enough to flick.
Which lines up virtually exactly with shirk's post.
However I'm hopelessly trying to maximize efficiency, both monetarily and spatially. I am pretty certain at least 90% of my riding would suit a Rune or similar burly-AM build, and the remaining 10% would probably not be terrible. Of course I would suffer on a 3 hour XC epic versus a dainty trail/XC bike, and for sure I will feel the compromise when I smash through braking bumps coming into a big berm on Freight Train (and I'll feel a little more tentative about how much speed I should carry off the lip). My debate is whether these fleeting compromises outweigh the added burden of another bike - one which will depreciate in value at more or less the same speed whether I ride it or not and which inflicts scratches on my trail bike every time I try to squeeze it out of the cozy nook my bikes have available to live in.
Thanks for all the points of view, even though they serve to hammer home the fact that it's not an easy decision more than anything they are also valuable pro's and con's to add to the list.