TTD -vs- KK

Hey, I just got back from Cedar Point a couple weeks ago and had a blast! I got to ride Top Thrill Dragster and I really enjoyed it. I would love to ride Kingda Ka, but I want to know if it is worth the time, money, etc. KK is about 3 stories higher and 8mph faster than TTD, can you really tell the difference? Is it that much better than TTD? I just want to know because I'm trying to decide if I want to drive that far for a ride that's just like one I have been on. Thank You all

Keep on Riding,
MilleniumForce