So why try to make this area so exclusive? It's just a game, play what you can and want to with the time you have. Enjoy. 
Your right not all arenas have a TT or furball area. That's why most of us that want a quick fight log into orange, my guess is that's probably why that arena is the most populated. A lot of the time when I log into the blue arena I have to sit in the tower and watch the map for a while to find a fight. When I finally find that area and up the fight dies about half of the time before I get there. That's not fun for me, it limits my enjoyment of the game. I know if I can get into the orange arena all I have to do is go to TT and I will have all the fights I want.
I'm guessing your fairly new to the game so the win the war aspect is fun for you. Ive been playing these types of games for almost ten years, there was a time that I enjoyed base capture but after awhile it got boring. If you drop enough bombs and capture enough bases it all becomes the same. There is no human behind that toolshed, its not going to avoid your bombs or reverse on you, its just gonna sit there. Now a real live person behind the controls of a fighter is a different story, you never know how that person is gonna react. Its different every single time, that's why I live for the fight. In fact I would rather lose a good fight than get any easy vulch or pick kill. That doesn't mean I don't enjoy a good vulch. There just isn't that sense of accomplishment on a vulch or a pick like you have with a nice long fight that's starts at 10K and ends up in the weeds. The fight is why I'm still here after all of this time, and fights are easy to find at TT. On a good night I can get a few of those types of fights in an hour.
Its pretty safe to say that those of us that like to furball could care less about the war. We are just happy playing air quake over TT and we are doing nothing to limit your enjoyment of the game. There are hundreds of bases outside of TT where you can all have your fun. But why would you want to kill our fun by steamrolling TT??? Does it serve any purpose other than stirring up crap like this thread on the BBS??? You sure don't need those three bases to win the war.