Don't worry, guys, I think this one's a troll. A good one, though:
So, make it simple: what makes that high price? High supply.
See, he has it backwards! Naptha, economics 101. High supply:demand ratio = low price. Low supply:demand ratio = higher price. That's why, here in 'MURICA, we burn millions of kilograms of corn and wheat when there's a surplus - to keep prices high. Supply and demand, baby.
Furthermore, your statement that bitcoins can't be used for anything is categorically false. Here are some things that I can do with bitcoins:
-Buy tons of random shit, computers, clothes, etc. on bitcoinstore/bitmit/etc
-Buy ANYTHING from an individual who sells bitcoin (I've had people buy items from me on Craigslist and pay in bitcoins)
-Buy food at restaurants (one service contracts over 1,000)
-Buy a car
-Buy from one of
many thousands of merchants through bitpay (yeah, it's not strictly end-to-end... your point?)
-Pay for internet services such as VPN, domain names, hosting, etc
-Order ANY consumer good via bitspend
-Buy PMs - gold, silver, copper, etc
-Buy drugs and guns (yes, a black market exists, GASP)
-Place bets, gamble
-Purchase high-end porn on MetART or sign up for the online dating service OKCupid, or download shit on Mega, or tip people on Reddit, or pay for your blog on Wordpress, the list goes on.
-Donate to your favorite charity that accepts bitcoins, or your favorite open-source software project (there is a rather long and constantly-growing list of Bitcoin-accepting NPOs on the bitcoin Wiki)
-Invest, share, send, receive, put, hold, call, trade, speculate, hold, buy, sell, give, donate, color, flip, mix, save, hoard, spend, piss off Ben Bernanke
-Heck, Elwar just bought dog food with Bitcoins
-A guy I know teaches guitar lessons and a couple of his students pay in Bitcoins (no idea how he pulled that one off)
-I buy hay for my rabbits with turnips (barter 4tw, I am the master of the juicy turnip), and the seeds for the turnips I ordered with Bitcoins. Did I blow your mind yet?
So you're like 1 1/2 years late with your "bitcoin can only be used for buying drugs on silkroad" diatribe. People who say bitcoin can't be used are people who just don't want to use it.