At first glance, $10 seems pretty cheap, but if there's essentially no new improvements aside from the achievements (that seem to be kindof lame) then I don't really see the point of buying it. Sad to get fans all excited about a re-release hoping for some significant improvements and then to see disappointing reviews make me not really care about it. :/
They're never going to top FFVII's story or game sales, so they should quit dancing around and just remake the damn thing so they can actually top the original's sales like they want to.