For those starting out with no gear, Basspro is a good place to locate many items at once.
For those of us who already have an assortment of gear for various fishing scenarios, we pretty much have everything we need from our many local shopping venues that carry specialized stuff.
Aside from checking out the fishtanks, I only shop for outdoor clothes and some light terminal tackle when I do stop by.
In Vegas, you could whittle away the time next door at Silvertons, which has a nice Mermaid fish tank for you and the kids.
So, no, you are perfectly sane like the rest of us; except for the shared addiction of paddling out into the Pacific Ocean on a moderately small piece of polyethylene roto-molded plastic
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P.S. Never buy the Offshore Brand Basspro Sabikis. I loaded up on 2 dozen one year and each pack had hooks that snapped like dry twigs...