I never really saw much purpose in this filler to be honest. Other than a gap between the Grand Festival and Ash's eighth gym battle, there were no new showcased Pokémon nor was there anything new for viewers to really seek interest in other than humor.
A few scenes I found funny myself though were how Glameow envisioned Meowth as her "knight in shining armor," yet he was burning on top of a Rapidash and how oblivious Ash really is to love, and Dawn just had to try and ignore that. XD; Oh yes, and Jessie being curious to see how Purugly really looked without its tail around its body.
I really just watched this episode to say I watched it, but the upcoming gym battle against Volkner should be entertaining. :]