When you arrive there is a chance you'll be 30 minutes away from the stages. Although I have been camped by pod 9 and that is farther than BFE camp at POD 1.
Camp 84 and 85 Katrina and Billy Zane is by Pod 6 according to last years map is the farthest that you can be from the main stage. It's about a 50 minute walk.
The reason why BFE has it's name is because it's secluded from the rest of the camps.
As far as having a 45 to 50 min walk. It really doesn't seem like that long when you're with friends sharing a few beers and enjoying the festival.
If you are by yourself you can walk faster. I honestly made the 30 min walk by my self in 15 minutes.
IF you really try no where in Bonnaroo takes more than 20 minutes if you put your mind to it.
And it's not like other festivals...COUGH.ALLGOOD.COUGH where there are hills that are 40 degree angle. If anyone has been to All Good know about the two hills I'm talking about. DEATH MARCH.
Bonnaroo is all flat land. It's an easy walk and most of the time a fun one full of a beer, people watching, and sometimes a shakedown with an awesome kid with long blond dreds shooting people with a watergun.
there are certainly some good points there, but one huge thing you forgot to factor in was the length of those walks late at night after you've been in centeroo all day, and you're exhausted. my group and i parked in BFE in 08 and camped in tent only, and i for one could not imagine walking back to BFE at 4am after that my morning jacket show. and you probably won't always have beer on you to make the walk easier.
it's also really inconvenient to go back to your tent throughout the day if your camp is far away. you'll have to resign yourself to the fact that you'll spend a lot of time and money inside centeroo. we brought a lot of food and snacks with us, and it was so nice being able to just walk 2 minutes away from the arch to get to our camp and chill out for a bit and maybe take a shower at our shower tent or get a good amount of alcohol in our systems before heading back in. we couldn't have done all of that as easily or conveniently in BFE
i will say that it really sucked lugging all of our shiz out there though. we had beer, tents, bags, coolers, food, whatever, and we had to wait in line in BFE for about 3 hours until 8am when they'd let us go to tent only. after that it was a mad dash for about a mile loaded down with a whole bunch of heavy stuff. then after we finally started setting up, jerkstores were showing up in tent only with their quacking cars. i didn't go last year, but i really hope they cracked down on that malarky because it was so unfair.