Hmm, ok...
I think we may be getting a bit off track here: If I had to guess (and I've a fairly good educated guess here) the main reason for the *proposed* billing changes center around the payment processing company. Normally a payment processing company has a few ways they get thier cut: Per unit and monthly based on throughput.
'Per unit cut' states that the payment processing company gets a flat dollar charge for every transaction while 'monthly based on throughput' is usually a sliding percentage based on total dollar value...
Where these two get tricky and require asking the playerbase what they would like is that you have to pass a certain volume of transactions to make one more profitable than the other, or have your per unit cost high enough to make the per unit worth while.
So there's actually a lot of brain-damage that goes into making these sorts of deals because while you might have the best of intentions for your game, the billing company has no such qualms and will simply ******** you on proccessing fees without so much as looking you in the eye.
So, the way it *looks* like they are trying to work it is the big-ticket subscriptions will work under a per unit plan so that Vi gets the majority of the money based on the flat transaction fee: $4 out of $200 is better than $4 out of $10, as long as the number of transactions stays under a certain number.
The smaller subscriptions will probably work on the other, throughput, method because Vi will get more money that way as well: 5000 transactions at $10 is $50,000 minus the 2% fee ($1000) is better than 500 transactions at $200, which is $100,000 at the sliding 4%-5% fee ($4000-$5000).
So, armed with this little nugget of knowledge, and figuring Vi is going with someone other than PPT, its a bit easier to see why the price might be going up a little and the billing structure is changing.
Ultimately Vi is not holding a gun to your gead and extorting money out of you. If you don't like/can't afford/feel cheated by the new billing structure, as has been mentioned there are many other MMOs out there that will gladdly take your money. But I, for one, understand the reality of the industry and back Vi's decision to try and change things a bit... I hope there are enough like minded folks when this is over that I won't have a server all to myself.