IMO tv stands are generally way over priced at the high end for what you get.
Center channel openings seem to be too small in the majority of stands/credenzas.
I contacted a local craftsman I found in the yellow pages and he can build a custom credenza using solid wood of my choice to my design, basically matching some of the designs I see online, between $600 and $800. I may go with red oak but prefer tighter grains and hope he can get some birch.
Before dropping lots of money on a mail order stand try your local cabinet makers. Many have amazing skills and costs are more reasonable.
