Every cash shop game inevitably falls victim to creating a money = progress atmosphere. It might not be required, but it'll be faster, more efficient, and unfair. It might not ruin the game, but it would ruin the fun - which is worse.

I vote monthly sub. over cash shop forever.

Besides, most people end up blowing way more than our monthly fee on "Free to Play" cash shops. That's the gimmick. That's why they do it. You seen how much people used to drop on GAIA and it just got less and less fun?

/pass