No, it sucks because banks will not pay for software for their tellers. You've never been a teller, but you know it sucks. So do the banks. But they don't care, because there is no money to be made in improving it.

(Wait until they realize that there is no money in etrading either. Then there will be a lot of people on the market that know how to micro-optimize memory allocators. But I digress...)