In the scene near the end when Taggert and the gang rides into the fake town, Taggert jumps off his horse to kick in the door of a store but knocks the whole facade down. A few seconds later, after Jim sets the dynamite off by shooting it, the first closeup of an explosion in town is the same storefront getting blown up.
Does this make the movie look cheap? Then I suppose it is meant to be on purpose, as this comedy is supposed to laugh at its own 'supposedly' low budget.