Spendor S8e or Vandersteen 3A-Sig or ?

Do you think that adding Vandy subs to my 2Ces' make a substantial difference in the overall character of my mains?

Wow, thanks for all the fine input! Why did I think this would be easier? Every ones opinion, regardless of whether they prefer the Vandys or the Spendors, seems well founded.

Jimmy, your comments were particularly interesting due to my own feelings pertaining to my Vandy 2Ce's. I really, really appreciate the detail and accuracy, but they can seem too clinical, or uninvolving. Does that make sense?

I thought about getting some Vandy subs to supplement the low end and free up the mid-range in the 2Ce's, but that's a large, and further commitment toward the Vandy camp.

Incidentally, my room is not ideal. One (right speaker)end of the room is open to the dining room and kitchen and the ceilings are cathedral... but that's a whole other conundrum.