The presale of Ethereum, like that of Mastercoin, is very well defined with a clearly defined period of investment, and in the case of Ethereum, a clearly defined limit on total investment. NXT, on the other hand, was arbitrarily closed at the convenience of the founder with no advance warning, and not everyone who was interested was allowed to invest.
There you go again...
You know very well that the ONLY reason you were not allowed to participate early is because the Genesis Block had been generated.
So... why do you keep going back as if it has not been explained to you? Also, why do you keep throwing that 4762% figure around and not the actual rate of NXT/BTC 0.000001?
Genesis block was still under construction the next day according to posts in NXT thread. Indeterminate when it was started, but if the coin that went in while I was waiting for an answer was included, then mine could have been as well.
Again, the math: presale price = 21 BTC/1,000,000,000 NXT = 0.000000021
price when first offered in NXT sale thread = 1,000,000 NXT/BTC = .000001
.000001/.000000021 = 47.62 = 4762% increase in price