I'm doing more and more homework and I came across this video and read the first comment below it.
So is the 8.3 the better way to go in terms of value and what you're getting, in regards to what that quote below says about the KaiTai?

At least I'm narrowing things down a bit. lol
"Despite the lack of disc brakes all the parts are the same as the trek 8.3 aka kaitai 2012 and the bike costs 30 dollars less.
The bike is actually a tad lighter without the disc brakes and after doing some research the tektro novela disc brakes aren't high quality ones and requires maintenance. most ppl eventually replace them with nicer ones."