I agree with everyone here. If you're after that one premium cable channel that you watch everyday (ESPN, HBO, Nickelodeon, etc) you won't find it with that satellite dish, call DirecTV. However, if you're looking for something you can't get on cable (random sports and news feeds without commercials are my favorite), and a fairly inexpensive and fun hobby, you've found the right place! Come college football and basketball season, there are more games to watch than I could possibly have time for, most in crystal clear HD quality without all that nasty compression or annoying commercials.
I love my BUD, it's amazing what there is to watch. Leaving the dish in your backyard would be a mistake. With what you have now, as little as a couple hundred dollars would open up a world of programming you never thought was possible. Combine that with an over-the-air antenna, and I'm sure you could care less about cable (unless there's that ONE channel you have to watch everyday...and even then, that BUD is a great, inexpensive supplement). It doesn't REPLACE cable for most families, but it's a great and inexpensive addition.
Yes, there is some technical know how to learn, but it's fun and it's worth it. No, it's not as easy as turning on the TV and flipping aimlessly for hours, but look at the price and quality difference. With cable, you're paying more for crappy quality for the convenience. With the BUD, you're paying nothing for great quality, with a little effort involved.