If bitcoin goes mainstream, then we might all be early adopters. Maybe in 5 years people will be saying, "there are people out there who have 100,000 mBTC just because they got on board early, would things be better if we just restarted?"

Bitcoin is only here because people before us carried the banner. I know this is a hypothetical, to getting into the nitty gritty details is pointless, but surely you have to see that the reason why bitcoin is growing and has lasted this long is because of early adopters. They took a gamble, and it is paying off. We, the midterm adopters, are also taking a gamble. But the odds have changes, and success is more likely then it was a year ago, so you have to put more in to get a share of the pie.

This is pretty much the same as investing in a company. Early investors might get millions of shares cheap. But no later investor would say, "man, two years ago I could have bought 100 times the shares for the same amount, this is something that should be addressed." That is because they understand that investing earlier was more of a risk. Sure it was cheaper, but payout was way more uncertain. Why can't bitcoin enthusiasts understand the same thing?