If a speaker stand is mass-loading, how much does it matter what they're made of?

Thanks for the suggestion. One member on this forum suggested a fairly inexpensive way to make rollers with furniture cups and ball bearings which could decouple any number of things, including speakers. 

I'm kind of suspended in indecision at this point. The solidity of Deer Creek stands (similar to Anchor but made locally and less expensive for some models) appeals, as do the aesthetics. Price is high. The Skylans could be custom fit and are at a good price, but aesthetically, meh. If I wanted to get a "meh" stand, I could get an inexpensive Pangea stand, fill it, add a heavy top plate bought locally, some blue tak and I'd be done. 

People are split about wood. It looks nice and some is clearly resonant, but some is rather hard, inert. 

At the moment, the sweet spot for me is to wait and shop used. Or just forget about it.

@twoleftears Chris from Kemala called me at home and we had a really nice conversation about this stand:

http://customdesign.kemela.com/prod-pages/spk-fs106.php

Thanks for the tip.

I saw several models from Custom Design when I was in England a couple of years ago.  They struck me as extraordinarily well made.

Very tempted by Deer Creek Audio stuff, too. Simplicity. 

So, just a follow up on the speaker stands I chose. I went with Deer Creek Audio for 20" stands. They were $730 for the stands plus another $110 to drill 8 holes in the bottoms for 8 screw/spikes. Total, then, was $840 because I picked them up, locally. Otherwise, they would have been about $940. Other models are less expensive, so keep in mind there are additional options.

I really like the way they look. I will say they wound up being about $240 more than the the upper level Target stands. I have no comparisons about how they sound with other comparable stands, but I like what I'm hearing.