Can you shop for a Mortgage the same way you shop for a Car or a TV or a Dress or anything else?
To an extent, Yes. But, for the most part, NO!
When you shop for a Car, you go to a few dealerships and see what they have to offer. You not only get their price of the car, but you get the price they're willing to take for your trade-in. Getting the trade-in value is very important because they might be giving you an awesome price on the car, but cheating you out of hundreds or thousands on your trade-in, but you didn't pay attention to that part. Also, as long as the cars have the exact same features, dealerships will allow you to bring in a quote from one place, and they'll match it if you want to buy at the place with great customer service.
When you buy a TV, you're going to go to a few stores to see who is offering what, what sales are going on, and if they are aware of a future sale, as many know in advance when sales will happen. Again, you get all your pricing from the different stores to compare. You also need to compare their warranties, and if they're going to charge you for an extended warranty, and how much. Most stores will allow you to bring in an ad or a quote from a competitor and they'll match it. Because of this, it's good to go back to your favorite store who had the best customer service and best warranty combined, and ask them to match the lower price, and voila, you get the best of both worlds. In addition, if the TV goes on sale in the next 10-14 days (depending on which store), they will give you the sale price difference of what you paid. You never have to worry about buying today verse next week because you're covered.
Clothes shopping is the same way with a Sale. If you buy something one day, and it's on sale the next week, you can bring in your receipt and get a credit back for the difference... And, if you don't like the dress or the TV, you have so many days to return the items for a full refund.
Can you do this with a mortgage?
Can you say, "Hey, Mr. Mortgage Guy, I know you're giving me great service, but Discount Broker down the street is offering 1% less on their rate with no fees. Match it!"
Can you say, "Hey, Mr. Mortgage Guy, I closed on my house yesterday, and now rates have dropped a half a point. Can you refund me the difference?"
Can you say, "Hey, Mr. Mortgage Guy, I closed on my house a couple of weeks ago, but I don't like my neighbors. Can you cancel my loan, and just give me back my down payment and fees and such?"
Shopping for a Mortgage is nothing like shopping in general, so I don't know why people try to compare the two. The only thing that's the same is you go to multiple places to get as much information as you can, but the mortgage guy gives no pricing guarantee.