If you go online and find a cheaper one, then print out that ad and take it to PetSmart, they will match the price. I got mine for I think $43.00 that way. I just did a search for midwest fencing. model 544-36.
I'll try to find the site and post it here. Found it
http://www.rockbottompetsupply.com/product_p/544-36.htm