i also thinks its great they're being pro-active and tossing up lots of new ideas for ways to enhance memberships
one problem i had doing it...they rarely compared memberships with the same amount of entry to games
when given a choice of a 16game membership vs. any lesser amount, i would always pick the one with the more games irrespective of any of the add-ons they provided on the lesser game memberships
i thought they could've had one question where all three choices had the same amount of games, so people could determine which options or add-ons they preferred
that all said, i know nothing about statistics or market research