Not one single relaxing place in the MK...? I disagree... I find the TTA to be quite a relaxing place... and there are a number of comfy benches (designated or impromptu) and grassy spots where one can sit and watch the people go by.
I've never made the trip to TSI, but a lot of people talk about in fondly and it would be sad to see it redeveloped for them, but as other posters put it, this is a prime spot for eventual development and unfortunately less of an attraction for future generations.
The peoplemover is relaxing, but it's different than sitting in rocking chairs in the shade watching all the chaos going on across ROA and watching the Liberty Belle go by. There's not one place you can get that kind of private relaxation going on.