If you are within driving distance of Grayland then you also have
FlyMan Models within reach. Grayland is a pretty cool store to visit.
I found out about them about a year ago. Not too long ago I got a 1:72 F-14 from them. They are big on larger-scale stuff. Well-known store here in the U.S.
I started collecting by going to a store here in Houston (before living here full-time) that sold electric trains and model airplanes (Herpa, Schabak, Woosters...) It was paradise. The store was located in an upscale mall popular among tourists. Seemed like the perfect place for such a store to thrive; a place where people usually went to treat themselves with exclusive items. By 2000 they had moved out, and by 2010 they were gone.
There was also a pilot shop that had a small model section, gone too. Online retail killed them. I also remember it was possible to find a small selection of GeminiJets in your typical hobby shops that also sold plastic kits and RC stuff, but many of those have also disappeared, and the ones still in business no longer carry any diecast airplanes.
I don't think I could find a single 1:400 airplane for sale anywhere in the Houston metroplex today. Unless I go to Nick's house lol (TexanAirplaneStore)