I have heard some stories about folks buying a polaris online only to realize that it was refurbished. How do I ensure it is new and not refurbished? Also, can anyone recommend some reputable sites? Amazon, In the Swim and Pool Supply Warehouse all have the 280 for $370-380 but Leslies has it for $600. The price difference is suspect. Plus its also odd that if you go direct to In the Swim's website...their Polaris is a lot more than it is on Amazon. Help!