We know that there are alot of 2 or more of something. There are different countries, currencies, cars, and other items. I know Bitcoins and other cryptocurrencies can be used for anything but what about this (just an idea).

Bitcoins (highly secure but slower) = for high end and mid priced items like houses and cars

Litecoins (less secure but faster) = for lower priced items like computers and GPUs

Peercoins (no ending supply like fiat currencies) = for everyday use like buying coffee and snacks

Namecoins (for domains) = they're outside of ICANN control and thus avoid domain censorship

Primecoins (for science) = searches for prime numbers

Dogecoins (doge style) = for donations and sponsorships

Again, any of those cryptocurrencies can be used for anything.