TedW posted:The McCormick-Stillman Railroad Park in Scottsdale is one place.
This is THE place to visit for model and toy trains in Arizona. While this is not a store, the railroad park is an incredible mix of railroad related items from full scale down to N. I am a member of the Paradise and Pacific which is the hi-rail O club. We are very friendly and it is open 363 days a year, 7 days a week. We'd love to have you stop by and hang out. pandprr.com
Also, I am active with our local TCA Division. We meet the 2nd Saturday of the month for an hour of socializing with member sales tables, a brief business meeting, a usually excellent education segment, and finally raffle prizes.
The Grand Canyon Model Railroaders grew out of an old TTOS chapter and is also very friendly. I'm not a member yet, but they also meet most monthly.
When are you planning a visit?