I'm not tall. In fact, my doctor says I'm shrinking so fast as I get older that soon my students will be able to notice a major difference when they look at the front of the room and use their thumb and forefinger to frame my head while they mutter "I'm crushing your head."
Seriously, I see you are in Massachusetts...I'm in the Midwest and we have one upscale department store that seems to have some good variety of big and tall items. I thought many of them were finally getting it together about providing stylish clothes that don't cost a fortune for big guys. You might check out Dillard's online at: http://www.dillards.com - they at least offer some stuff on sale, too.
I'm sure some other tall people in here can offer some better suggestions, too.