House of Guitars, Rochester NY. Not Bass-specific, but tons of inventory. I really like the amp room

I do believe
@godofthunder59 can tell you more.
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I grew up in the neighborhood, so I am
very familiar with HOG. My avatar was snapped there about 10 years ago. I don't think their bass inventory is quite what it used to be. They usually have a bunch of Fenders, Ibanez, and a handful of other random brands/models. Maybe 40-50 basses total. Yes, there is some variety, but not in vast quantities and color options. They do have a selection of vintage models out on display, but it's out of reach and partly considered their own family collection. All that being said, it's an awesome place to visit, and you may even find a cool bass there. It's like a living museum, and it's usually a total disaster area (though efforts have been made to tidy up lately). I've always found their pricing to be flexible, although I think they refer a lot to the interwebs these days when quoting a price. If you scout around near the front counter, there's a Jetglo 4003 with Geddy's autograph on it -- but I was told it's not for sale. If you'd had the pleasure of going to NAMM and perused the Fender exhibit, you'd see a lot of little white tags on the rare custom shop guitars that say "Reserved for House of Guitars." They are certainly worth talking to if you are looking for something unique and specific. Legend has it that they have thousands of guitar and basses in the basement warehouse, although I've never been able to confirm that with my own eyes.
There's a shop across town in Rochester (Fairport) called Fab Gear. Andy Babiuk is the owner, and he worked for a couple decades at HOG starting in the 80's. He's a cool cat, nd one of the most knowledgeable experts on guitar history you'll ever meet. His shop is small and there are not many basses in inventory, but he has exceptional personal relationships with many manufacturers. His inventory is cream of the crop. He will occasionally get exclusive editions from Rickenbacker. If I ever wanted to order something brand new from Fender or Rick, he'd be my guy.
In the Detroit area, Motor City Guitars in the northern burbs has an inventory of about 200 basses. Many are in the low to mid price range, and there are more brands that I can list. Their premium stuff would be USA models from Fender, G&L, Rick, and Gibson. Plenty of new and used -- both guitars and amps. Good selection of pedals too.