Teajay;
I can't fit 3.6s or 20s into my listening space, but I do have four 1.7s (quadraphonic). I fully agree with the benefits discribed by Rootman & Peter so I won't bother with that. My experience is that I bought a pair of Mye stands for the front channel speakers since 80% of my music comes from the front channels. The Mye stands worked so well, especially in the bass response department, that where I had a nicely balanced sound front-to-rear, now I had an anemic sounding set of rear speakers which were no match for the fronts - even if I turned up the rear volume. It just wasn't the same.
Since I don't need/want as much crystal clarity coming from my rear speakers I opted for a set of Sound Anchors for the rear speakers. The bass oomph and the mid & upper volumes came back into focus, and all is well.
Now, 1.7s are just a little over two grand a pair. My Mye Stands cost me close to $600 with shipping and a couple of extra holes drilled. That's approx. 30% of the cost of the 1.7s, yet I still consider them to be a bargain.
If you can afford to add a pair of Mye Stands to your Maggie's - do it! If you don't think you'll have an extra $400 - $600 to spend, at least get the Sound Anchors.
You'll be in for a very pleasant surprise.
Toolbox