I know last weekend Petco was doing $1 per gallon. Aqueon 40 gallon breeder + a mesh top (petco brand, folds) is a pretty nice setup, currently using this exact setup for a red eared slider, have all the lights up front and can use the back folding half to open up to do quick spot cleans and remove old food.
The front doors of the exo-terra are nice, I have my beardie in one, but it's not worth $160, let alone full MRSP especially when the mesh top that comes with it sucks and was replaced with the Petco folding mesh top... so in reality... it's either $160+20+taxes at the store, or MRSP ($200?)+ 20+ taxes at the store.