Ahh! After scouring the internet for the cheapest DCN prices, I was beginning to think I would never get one. So I went out on a limb and asked a local rat rescue if they had any spares they wanted to sell, and she has a Single until she'll sell me for $50! And conveniently, she's coming next Monday to the same vet as I use, so the meet up is easy. It's like it was meant to be! The only problem with the cage is that the plastic level is chewed, I know you can buy replacements though, does anyone know where? Also, since I will eventually be buying an add on unit to make it a DCN, I'm going to sell my current cage. What do you guys think is a reasonable asking price? The cage costs $170 new, but I bought it on a sale for $130. The people in my area tend to try and low ball offer a lot, they want nice stuff but don't want to pay a reasonable price.