So the 40's are $1449 a pair retail. Plus, you have to buy stands.
The 60's are $1899 a pair retail. No stands needed. So you see, a floorstander cost just a little more.
See if you can get the dealer to let you demo a Paradigm sub at home. If they know you are interested in the speakers, you may have a good chance to pull this off. A Servo-15 would be a nice demo.

I would not buy the Paradigm sub. Just try it.
If you like the speakers, the price looks fair.
For the price of the Paradigm speakers, I would prefer Monitor Audio. See if you can find a dealer, and try them out as well.
http://www.monitoraudiousa.com/distributors.php?page=340