The Nanos prompted me to sell two Compacts. Love the sound. The Compacts are a little easier and quicker to set up, but not enough difference to matter.
Then I found another Compact in my garage. I sort of forgot I had it. It had a problem so I sent it to Bose for refurbishing. It's a great deal - $175. including shipping both ways and they put an additional one-year warranty on it. Got it back it less than a week.
Now I will either add a second Bose, and use them for my backup system, or sell the one I have.