The problem with all music shops is that now we have the internet to see what is available throughout the world they can no longer carry sufficient range of stock whether it be picks and stings, high-tech instruments and effects or anything in between to satisfy anyone other than those with the most mainstream of tastes. And nor should we expect them to.
Consumables are easier to buy in bulk on-line where the choice is unlimited and the only real restriction is price.
Even the ability to try before you buy IMO is over-rated. In the last 20 years I have tried 2 basses before paying for them. One was fine played sitting down in the shop. Within a week of getting it home and using it with my band I discovered so may short-comings that it was moved on and replaced with something that I bought on the strength of some nice photos and a decent reputation of the brand. The other has had a couple of years of use but has now been relegated to a back-up instrument as a result of buying something else on-line. For me trying in the shop is close to worthless. It's only when I'm playing with my band that I can make any meaningful decisions about an instrument or other piece of musical equipment.
The last time I went to my local music shop to get a hands-on demonstration of a pice of musical equipment, the department I wanted to go to was closed and no-one appeared to be interested in opening it to serve me. So I bought something from Amazon on spec alone knowing that if I didn't get on with it, I'd be able to return it for a full refund, no questions asked.