It looks like the Downtown neighborhood has won out over Downtown-West neighborhood for the new location for Gold's Gym. I spoke to people from Gold's since they first were informed of their need to move and talk was pretty much narrowed down between the Goodman Building at 13th and Washington or St. Louis Centre at 7th and Washington. They are moving as I write and should be fully opened at the Centre on December 1.
I have mixed feelings about it, but I'm kind of glad. The area at 13th and Washington while a good location, seems to be anchored right now by several great new businesses. The Goodman building (2 story) would be a great location for a variety of places (bookstore or grocery store maybe?). Not that having Gold's there would have been bad, but to me, it seems like it will do more good having a stable new tennant for the Centre (plus it will be closer to my place at the Dorsa lofts).
The bottom line though, is thankfully, they stayed in the urban core. They could have moved to Affton or St. Louis Hills.