The Most/Least Remade Course From Every Mario Kart Game

Since I have nothing better do do, I've decided to make a list of the courses that Nintendo's remade over and over again, and the ones they want us to forget. This includes Tour and Super Circuit remakes. I won't be including 3DS tracks since Nintendo's putting way too much love into them, and besides, there are only 2 games they can be put into.
SUPER MARIO KART:
Most Remade Course(s)
Mario Circuit 3
Rainbow Road
Least Remade Course(s)
All Bowser Castles
Mario Circuit 4
Ghost Valley 3
MARIO KART 64:
Most Remade Course(s)
Kalimari Desert
Choco Mountain
Least Remade Course(s)
Wario Stadium
MARIO KART: SUPER CIRCUIT:
Most Remade Course(s)
Sky Garden
Least Remade Course(s)
Yoshi Desert
Entire Special Cup
MARIO KART: DOUBLE DASH:
Most Remade Course(s)
Baby Park
Yoshi Circuit
Least Remade Course(s)
Mushroom City
Wario Colosseum
Bowser's Castle
Rainbow Road
MARIO KART DS:
Most Remade Course(s)
Waluigi Pinball
Peach Gardens
Least Remade Course(s)
Figure-8 Circuit
Mario Circuit
Bowser Castle
Rainbow Road
MARIO KART WII:
Most Remade Course(s)
Mushroom Gorge
Coconut Mall
Maple Treeway
Least Remade Course(s)
Luigi Circuit
Toad's Factory
Mario Circuit
Daisy Circuit
Entire Special Cup

So what do you think? Are these courses overrated? Underrated? Do you think some of these courses will ever be remade? Let me know.

MC4 NEEDS to come back in MK9 (preferably RHcks' version)

We already have it, it's called MC3 in Mirror Mode

A lot are overrated garbage that'll never been seen again. The GBA nitros will definitely comeback remade at some point, & some of the simpler tracks here too. But when every Bowser Castle/Rainbow Road is a 3min course..... you could just reuse the same one over.
Or none. Whichever.

Most Overremade Courses:
SNES Rainbow Road - just because it was the first Rainbow Road doesn't make it the best. They always bring this back in every game when they could have brought back the Wii, GCN, DS, or even the GBA Rainbow Road which are all better.
Every GBA Bowser Castle - until 2015 Nintendo didn't bother bringing back GBA courses unless it was a Bowser Castle, same goes for SNES with the Mario Circuits but at least the SNES has little track variety as an excuse.
GCN Baby Park - one of the worst courses in my opinion. It's just a circle.
Wii Mushroom Gorge - the mushrooms are fun to bounce on but other than that this course is bad.

Most Underremade Courses:
Every GBA course that hasn't been remade yet (except Bowser Castle 4)
GCN Mushroom City and Wario Colosseum
Wii Toad's Factory, Dry Dry Ruins, and Rainbow Road

I hope the next Mario Kart game if there is one includes courses that haven't been remade yet as well as GBA courses in their original course layouts instead of the simplified layouts from Tour and the Booster Course Pass. I hate how Nintendo keeps ruining GBA courses like Sky Garden and Sunset Wilds.