Only I still trust MtGox more than any other exchange and I kinda want to keep my fiat:btc ratio at the current level. I'm almost all fiat on MtGox.
If any BTC business is "too big to fail" it's MtGox.
lol. perhaps you should look up the definition of 'too big too fail' again. they can quit/stop/fail any time they want.
Stop trusting exchanges. it doesn't make sense.
I like what bitcoin.de is doing much more; they are not storing $$ or , its just a marketplace and you pay the other person directly.