Wow transmogrification costs explained

I just checked out the new cost for transmogrification in World of Wacraft latest patch after the hotfix they did and it's honestly quite cheap compared to the previous system. You just buy slots directly and once set up those slot are preserved regardless if you change your gear and you can switch through your slots freely without any cost at all allowing you to just play with the style that you want to go with that day.
The cost of the outfit slots (those I checked at least are):
1st slot : Free
2nd slot : Free
3rd slot: 100g
4th slot: 200G
5th slot: 350G
6th slot: 600G
7th slot: 1000G
8th slot: 2000G
These slot are warband so you unlock them once for all your characters. This is a massive win that I love because I usually avoided transmogrification completely until now due to the huge cost sink, but now I can actually get into making like 10 slots worth of outfits for all my characters and just switch among them depending on mood!