Snowman, as long as your needs are met, you did good. It's not fair to compare because what's available, location, required features, taxes, etc. all play a part.
My craigslist finds got me 940w of panels for $270, some pay that for a single panel. Winning the auctions for the Eco-Ws meant I saved another $50 off of going to the site. In the end it is less than a dollar a watt for the 720w we run. It's not mounted yet but that's not going to cost much. Had I bought the panels new and had them delivered, bought a TS-MMPT-60 and the remote faceplate so that I can leave the batteries in freezing cold or blistering hot weather, My cost would have been much higher.
In the end having your needs met and not having to listen to a generator is PRICELESS.