Where did you find that 26 of January is the start of the main sale ? I guess the real main sale start somewhere in February, and we still don't know the exact dates. The pity for the early investors that they stick the token price to the $ not to the Ether, so one who invested 1 Ether in a pre-sale will get less tokens than the one who will invest the same sum in February due to ether price increase. I find it pretty unfair to early investors.