I have a mate who is an Arsenal Fan I believe he has to buy a membership to buy tickets. I am sure they even have different levels of membership and none of them guarantee a ticket you just have the opportunity before others. He normally only gets a ticket for Cup/European games which I always thought was harsh! They also use the membership criteria to buy on the official reselling site for season ticket holders that cannot go.
I think Villa need to explain membership does not guarantee a ticket only a season ticket does that. Add in that season ticket reselling should only be for claret/cub members first. General Sale window after.
What having membership does should mean no Man Utd/Liverpool fans in the Villa end for games like in the past.
What it should also do is give fans the chance to vote on important club issues such as next years kit and so on.
If the demand continues it is something we are going to have to get used to I am afraid.