Would not
http://en.wikipedia.org/wiki/Gresham%27s_law apply on a Bimetallism market setup?
Vastly depends upon altcoin acceptance inside nieche shops even, to be accepted as payment. Just imagine, more acceptance as a payment should move Bitcoin into beeing the reserve currency that people pile up. Just like it is, now.
I'm not talking about shops or payments. I'm talking about speculation. Look at LTC, PPC, NMC, etc.'s price during cryptobooms. April 2013. November 2013. Altcoins all go up during cryptobooms.
You just can't buy completely garbage altcoins that die after 1 month.
As a person who has 3000 LTC yet ...I resemble the above remarks (sigh) ...be warned I probably 'jinx'd' the works don't ya know...but the way things are looking now
might be bitcoin halving 2016 for the next ride on the ferry...not sure if I need another 'ferry ride' seems I get sea sick a lot and want to jump off the LTC boat most
of the trip.....not pleasant ...but I take your point as being 'kinda' valid in a broad way (up to this point anyway)
(this should clear the hoard of LTC out there when folk see I'm holding EVERYONE will bail....I always choose wrong.....you have been warned!)
silly hobby