Why just visit the Boardwalk, consider staying at one of the resorts. (Boardwalk Inn and Villas, Yacht and Beach Club, Swan or Dolphin) From my point of view, this is the best place to stay in all of WDW.
1) Location, Location, Location. You can walk to MGM and EPCOT. You never have to wait for your own two feet.
2) You can use the back entrance to EPCOT. What a timesaver after Illuminations!
3) Great Atmosphere - especially at night!
4) Breakfasts on the Fly at the Boardwalk Bakery or sit and relax at Spoodles (The breakfast pizza is my personal recommendation)
5) Jelly Rolls is great entertainment for adults! Great for people watching
6) ESPN Zone is the place to be for sporting events. (Looking forward to the NCAA B-ball tournament on our next trip in March)
7) Big River Brewery is another great place to hang out and people watch, or if you prefer, to keep an eye on your kid's playing the Basketball games.
Get the idea, there is a lot to enjoy around the Boardwalk!