Ah yes. My mistake. I "deposit" money into the market that way all the time. I rarely use the bank anymore. When I want 100k, I take my weight limit of silvers from the market, then buy treasures or spells at 50% from the market until my silver level is down to 100k where I wanted it, then I relist the items I just bought for 50%. They sell within a few days, as many other people are doing the same thing. If it later turns out that you need to liquidate your wealth, you can simply sell the items at the store to get your money back.
No banking fees, and only a few extra clicks per transaction.