As someone who has attempted a price change from the last increase, customers will go elsewhere for something cheaper. There will be those few customers that will understand and are loyal to a fault but that is not everyone. I will most likely eat that doubled processing fee to A: keep my customers happy as it is NOT their fault LL decided to increase fees B: To be competitive as possible.
I get some of it because servers are expensive but damn it still hurts for small businesses that don't care about profit primarily as that is NOT what drives them -, they do what they do because they love their customers, they love SL, and love what they do regardless...it's that passion for what they do that drives them, not the profit at the end of the day BUT as someone who is that small business owner, my expenses cost real money to be able to provide the services that we do and that 3.5% for selling L$ then another 5% will addup and make it hard for us to just keep our services inworld. I don't want to have to raise my prices & lose customers in the process and I don't want to have to remove my business from SL because it cost to much to maintain my business with the fees and I wouldn't be able to simply pay at the very least the expenses that is required to be in business : Servers, paying my staff members, billing system, software upgrades, software itself to run shoutcast servers, so on and so forth.
Hell, I can only imagine the impact this will take upon designers inworld as they have upload fees, marketplace fees, paying their staff if they have them, paying for their land as lot of those designers have a lot of land to be able to hold all their works of art, and etc. It just all adds up.
At the end of the day though, I'll just suck it up, obviously, and eat that increase so I can keep my amazing customers happy and work on other ways to help balance that increased fee out.