helena, you anticipate me for seconds
I don't like the annual/monthly fee: I use C2 in a very discontinuous way so I will pay 100 usd a year for something that maybe I will use for a month one year, six months the next year, one week the next next year...
In this way you are changing your market from "everybody" to "people who want to design videogames as semi pro or more"... if this is your intention for marketing reason... well, goal accomplished I can also understand that this could be a way to contain the crackers' plague, and you have all my sympathy for that too.
Personally I don't think I will switch to C3: I am doing this in spare time, and I will never earn a penny from one of my games (I will be lucky if some of them will see the light in a future far far away!) so simply it doesn't pays itself...
Have you thought a "Netflix" way to pay it? I mean 99 USD per year and you could use it by 5 different sessions, so that you could divide the expense with other friends...