The one vibe that I got from Disneyland when I visited was that we are stepping back into the kitsch of the 50s and 60s Disney. I feel that this is an excellent way to differentiate them from WDW. WDW has the size and the rides, Disneyland has the charm and the history. Because of this, The Golden Horseshoe should come back forever. Seriously, what good alternative has Disney offered? Woody's Roundup? Its nice and all, but I have seen a much more effective show with Woody and Jessie in the streets of Frontierland.
Great news! But one month only? BOO! I do hope they make it permanent. It's a great show that should be part of the Disneyland experience. Also count me in that it should return to the Magic Kingdom as well. The main reason it seems they cut it was to save money, with the admission prices they can easily afford to as you say put on the show.