My HS band marched in April of 1991.
I don't know how our plans were made, I am assuming through some tour company. REALLY wish a parent had been put in charge since they might CARE about the conditions we were staying in. I lived in an affluent district (not that we were all that rich, my dad was a fireman, but most were) and I am certain parents would've shelled out for a better hotel. I have no idea location-wise where we were, and it seems like it was NOT a national chain that we were staying in. I know there was a Shoney's in the parking lot because we ate the breakfast buffet every morning. That was included in the cost of the trip. The hotel was awful. Our shower ceiling leaked and I do think we saw a roach or two. We were given Disney Dollars to eat lunch at the parks (MK the day we marched and the brand new MGM the next day

). I don't remember what we did for dinner, but I do remember sitting in the parking lot of whatever place it was with some friends wishing we could just get on the bus and go home instead of back to the hotel.
Point of the story: The trip was AWESOME. I have very fond memories of the time spent in the park. Especially marching. Brings a nostalgic tear to my eye everytime I see the bands march before the parade. Being backstage was cool, especially getting to go through the "secret" door near PoC. And there is nothing better than being in my favorite place with my best friends (ok, my honeymoon there was better, but I meant for a 15 year old). But PLEASE try to find a good hotel. Now that the value resorts exisit there must be better options than staying offsite.
Best of luck with your task. Maybe in 10 more years when my daughter is in HS I'll get the job. Uh, probably not since we're local now, but maybe.
Have a great time planning!!!,
Cindy