Don't know if you're alone in that regard, but I am definitely not with you. Big, big functionality coming in 4.3: App developers will be able to utilize AirPlay to stream their apps to Apple TV. Think of the possibilities:
--My MLB app can send its video to my big screen.
--NetFlix directly from the iPad to your TV
--50" Angry Birds!
Possibilities are endless. This is HUGE!
I'm with you, I can't wait to beam MLB games to my TV.
However, HomeSharing is probably the most impressive feature for me. I have an enormous library on my MacPro which is constantly turned on, and now I can beam everything to every device in the house. The artwork, the descriptions, everything looks great.