Ryan's is the best place to go if you want pet supplies for cheap. For example, my dog's favorite Kong toy (the wubba) costs around $15 at average pet stores. At Ryan's, I can get it for half that. The selection is awesome. If you want variety, look no further! Overall, it's a pretty awesome place and you're bound to walk out with a ton of stuff.
There are 3 reasons I took off a star-- One, the hours. They're only open M-F 9-5. Since many people work those same hours, including myself, that makes it really difficult to get out there. If I want to go to Ryan's it has to be a planned outing that I take time off for, which means I don't get there as often as I would like. Second, in the summer time it gets really hot in their warehouse. There is so much to look through that you'll likely be spending a lot of time on your visit, and this gets really uncomfortable in the AZ heat, so maybe it would be wise for them to invest in a better cooling system. And lastly, they have a $20 minimum purchase policy. Granted It's usually not very hard to get to $20, but if all I really want is a kong toy, I then have to scrounge around and buy stuff I don't really need to reach the minimum.
So aside from those minor negatives, Ryan's is great. Wish the hours were better so I could get there more often!