Coolers are less expensive than humidors when you compare the storage space. Do they look as nice? No, they don't. I started with a 100ct humidor and within a few months, it was WAY too small. Now I have a 150ct Coleman cooler, it's been about a year since I bought it, and guess what? It's 3/4 full. I thought "theres no way I'll ever need this much space"
My humidor leaked like crazy and by the time I got around to sealing it up, I was already in need of something bigger. I know they seem like a big investment for something you may feel you'll never need, but if you get into the hobby like most of us have, you'll need a cooler or wineador. Being in the desert, you may benefit more using a wineador, since you'll have the ability to maintain tempratures better.