Upgrading a membership? WPMUDEV should I? but why?

Why should I renew my account with you people? I mean I found all the plugins and themes are half baked. What is "that" you coming up with that you are increasing price to that extent?

All I like is you guys. Can I lock the membership price even if I renew for a month? or quarterly - I mean by choice.

And will this extend the membership from the date my previous membership expires?