I don't understand the argument some people are making that the block size limit is OK because the main chain will only be used for relatively rare high-value transactions while new blockchains will arise to serve the masses.  Why would Bitcoins on the main blockchain hold their value if new blockchains are popping up left and right?  A few die-hard curmudgeons who don't want to change the rules isn't enough to keep the market price propped up.