Wholesale rates are available to brokers that are not available to you walking into the retail desk at a branch.
The question really is how much will a broker charge you to get that wholesale rate.
You think that you know what you are talking about, but don’t.
You may or may not get a better deal from the salesperson at the bank who might be on commission.
A neg am loan from a bank was not necessarily a cheaper or better loan than from a broker. Either way, it was a crappy loan, and it wasn’t cheaper to you if you went to the bank.
Try finding an honest mortgage broker shop that gives you the par rate for a fair fee. You might just get a better loan and find out that going to a bank can be a waste of money.
You probably would suggest defending yourself in court rather than hiring an attorney, and you probably fix your own car instead of paying a mechanic, etc.
That’s fine if you know what you are doing. When it comes to loans, most people don’t really know what they are doing, including many of those that think they do, and don’t get the best loan that they could have, from a broker OR bank.