Constantly increasing fees and shipping expenses seems to be here to stay in the ecommerce world. The bigger sites are all managing payments as they make money from that process. The "folks in charge" of this country decided that it is perfectly legal for ecommerce platforms to add shipping cost and sales tax into the total sale amount and collect a fee on the whole shebang. While we sellers cry not fair nobody listens, nobody cares. It's not their wallet being pilfered.
All payment processors must have access to your bank account in order to directly deposit funds from sales, and of course, deduct any disgruntled buyer credit card chargeback. Paypal has access to your bank account. Payment processors are subject to U.S. Federal Oversight and are held to strict standards of safety and liquidity.
Moving your entire inventory to another site may or may not create the financial windfall you hope for. Often the buyers aren't there so sales are fewer. There is still the inherent risk of chargebacks, returns, damaged merchandise returns, lost shipments, etc., which you will have to handle with little or no support from the site.
Many sellers spread their inventory across two or more platforms. More eyes on the merchandise means more sales. (If you have inventory people want to purchase).
Can you raise your prices enough to cover the increased fees and remain competitive? eBay has millions of members spending money every day. Are you sure you want to give up access to that potential buyer pool?
