1. I still prefer to shop in real life from a physical outlet. Could be from a private dwelling as well as a showroom. Online listings are very useful but I am not comfortable with internet purchases unless from a major and trusted supplier.
2. Instruments, effects, amplifiers, yes. Sundries, no.
3. A decent selection of strings.
4. Up to fifteen miles from home.
5. Assuming a range of basses already, good lighting and a selection of strings right off the shelf.