Replacing water fountains with soda fountains

Chris Carter:

Obama’s acceptance speech at the DNC was touching. It was a brilliant speech.

[…]

Don’t get me wrong, it all sounded wonderful, but I came away from it reminded of the kid who ran for class president when I was in 6th grade based on campaign promises of replacing all of the school’s water fountains with soda fountains. Plenty of kids voted for him because they loved the promise and incorrectly assumed that if he was promising it, he must have a way to make it happen. Those of us who took a minute to think about it realized that it was something that was beyond the power of one person and that it would take one heck of a lot of convincing and a whole lot of spending of money the school didn’t have in order to actually make it happen. Sounded great. Wasn’t realistic.
So, are we voting for what sounds great, or what sounds realistic?