It was always better to have your own tent to decorate and make fun vendors and you could dress them to show off your wares.
I usually had a Tailoring business. In two cases I shared a tent with another Tailor which was awkward competition wise. With one, the other Tailor could make BE additions to clothing and I could not so I had to depend on variety, and colors and interesting item names. In the case of the other Tailor, she was so odd anyway, but she only made things with the max number of sockets and every single thing was orange. 365 colors to choose from and everything was a single shade of orange.
Gunman's Duster Pallete
Some Cool Person's Droid Shop
Some Cool Person's Droid Shop Entrance Area
My Galaxies Architect had her office in the lower level of her Large Corellian House. I tried to feature all of the furniture I could make throughout the house.
After the NGE there was a big problem (though pooh poohed by devs) with Lairs spawning in your doorways. Crafters could not fight, so they could not clear a lair from their own home. This made business a bit challenging to say the least.