This is already in the game. Regular resources require a bunch of lesser versions to tier up in the transmutator. Example x3 T2 ore can be turned into 1 T3. Then x6 T3 can be transmuted into 1 T4. x9 T4 ---> x1 T5 ect.
If however you want to do enchanted materials you have to use silver.
So to turn go from T4 into T4.2 you require 23,160 silver + 1 T4. To get a 4.3 you need 46,320 silver + 1 4.2. It takes 92,640 silver + 1 T4.3 resource to turn it into a T4.4 Now when you get to the higher tiers 5+ you get the option of silver sink or resource sink.. so x1 T5.2 requires x9 T4.2 or 709,743 silver + 1 T5.
So to put it into perspective if you want to use your bank card to transmute yourself a T5.2 Cursed staff, it costs you 32 5.2 resources which would be 22,711,776 silver + x32 T5 raw resources or I suppose you could look on the AH for someone selling a T5.2 cursed staff as its probally going to be way cheaper. Now I know you might be thinking well T7 and T8 is going to be way more rare and thus thats where you will make your money's worth. Well just think about the current cost of just 5.2. This costs grows substantially with each tier up. You are looking at hundreds of millions of silver for just one item or one set of armor.
Yeah I am sure some people will throw down some money, buy up some gold. Lets look at the current gold rate which is around 1:539. So to get 22 million you would need to sell roughly 40,816 gold. Gold right now at its cheapest rate is $100 USD for 21,000 or about 200 dollars to get yourself 40,000 gold. I don't think I would want to spend 200 US dollars on just 5.2 gear, and that would be 400 dollars if I wanted the armor + a weapon.
I am sure Gold will probally sell higher then it is right now when release comes but that still does not change the fact that you are talking serious money to transmute into the end game gear. I wouldn't be surprised to see a few people using the transmutator for Tier 8 but overall it is not something that can be abused recklessly. Plus if you keep throwing that much gold into the market you simply risk crashing the gold market more. Worse case scenario is that some rich tycoon buys 1 million gold and tries to sell it. Now a bunch of people who are playing Albion have a better chance of buying some premium with in game silver opposed to having to use real money themselves. In the end I think it will play out fine.