Why is there almost a $50 difference in these? I can't seem to figure it out, unless its just a difference in vendors.
http://dblrsupply.pinnaclecart.com/...cubator_with_Auto_Turner_Postpaid-445-11.html
http://www.flemingoutdoors.com/hova...arge-window-incubator-w-electronic-therm.html
http://www.gqfmfg.com/store/comersus_viewItem.asp?idProduct=77
http://dblrsupply.pinnaclecart.com/...cubator_with_Auto_Turner_Postpaid-445-11.html
http://www.flemingoutdoors.com/hova...arge-window-incubator-w-electronic-therm.html
http://www.gqfmfg.com/store/comersus_viewItem.asp?idProduct=77