I finally convinced myself today I needed a pool robot and it seems like the Dolphin Nautilus is the best choice. I did some Google Shopping to find the lowest price and somehow I ended up at sunplay.com, despite my not being able to find their link again through Google Shopping.
Regardless, they were the cheapest I found with the Nautilus at $589 with no tax and free shipping. They have free shipping on all orders over $75. Saved $30 over Amazon. I did some price comparisons on some other cleaners and they seem to be cheaper then Amazon on all their pool cleaners - even $70 cheaper on the Dolphin Triton.
This is the first I've ever heard of them but they have excellent ratings and are one of Google's Trusted Stores, meaning they (Google) will protect your order up to $1,000. So SunPlay must be legit. Still, I've just today placed my order so I can't vouch for them yet. I will be back with an update, though.
So, anyone looking - check them, too!