Ooo I should feel special, I have all 3! I have a wire crate, a plastic crate, and a large kennel/dog run. I've found the wire crate *very* useful for traveling. It just depends on how you are traveling. I've used it for trips/camping, but Nebo doesn't ride in it, he rides in the car. It worked wonderful on our trip this summer, fit right in the trunk.

The plastic type crate I have is in my room in my closet. I used to have Nebo sleep in it at night, but he's very good now so I no longer lock him in it (just shut the door to my room). He still ends up sleeping in there most days anyway though. Actually right now I have the wire crate in the basement and I put Nebo in there if I'm just going to be gone for a short period of time. I used to put him in the plastic one in my room but he was ripping up things in my closet through the holes.

And as I said, I also have a large kennel/dog run in our backyard. I usually put Nebo in that while I'm at work so he can move around more.

Reggie and Smokey each have a plastic crate, I think we have around 4-5 of them.