I just checked #bitcoin-market, and I still see a big difference between a bitcoin and a buck. About $6.50 difference in fact.
We should be celebrating still, as we not only are still in the act of breaking the dollar parity barrier but also various other currency's units parity barriers. Which national currencies are worth more than 1 bitcoin per 1 of their main unit currently?
Meh. That is pretty much just a matter of convention and history. The value of a unit of currency isn't a real thing on an objective scale, it is just a sort of meaningless number. Since it doesn't mean anything, it could just as well have been any other number. If everyone woke up tomorrow the dollar was worth 10 times as much, with all prices and records (including memories) adjusted appropriately, you'd never notice the difference.
In the same way, if the block generation reward was 500 BTC, coins would be worth 73 cents right now. And we would never know the difference.