Well, I need to reply. I'm new here, but a pretty active person on camping groups on the internet.
We live in Yuma, and have had 3 properties in Yuma. We had a lot in the Foothills which doubled our investment. Didn't do that in Phoenix. We are in Yuma East, a 55+ manufactured home neighborhood that is affordable ($35 annual fee-don't let your property look junky and we will watch it if you are away for the summer. Nice!)
We fly RC (Yep! Chicks Fly Too!). We fly every day-almost never get rained out. And, we did have one morning that got blown out so far this year. Very friendly AMA club, Yuma Aeromodelers. Nice in the summer as there are usually just 5-8 flyers, so you fly a lot. When it gets really busy in the winter, we go early, or go to desert flying areas.
You know what they say-it's a dry heat. Well, it is. It's wonderful weather from about end of Sept until end of May. Then, it warms up. You just plan your day around that. We go up in altitude (like Williams or Flagstaff) for a bit in the summer. But, we Do have air conditioning, so it isn't a problem staying the summer.
It does seem that more and more are staying the summer. However, the traffic is never that heavy even when it's busy in the winter. Better shopping all the time. Not a lot of culture, but it's a very nice town, and quite safe. It's an area of 'quite safe' border-lots of military here.
The water? I didn't know we had a problem until I read this thread.
Mexico? We're going to Algodones this week for dental.
We just sold a house right down the mountain from Jerome (looked out our kitchen window at the town), across the Verde Valley from Sedona, Az. We bought there because it's a wonderful area. But...it was colder than we thought it'd be, and hotter than we thought it'd be. And, other stuff. We didn't care for it as much as we thought we would, and we found we liked Yuma more than we thought we did.
Just my story. Your results may vary. Hugs, Boni