UNBOXING Grafted Cactus Plants | Moon Cactus Examples! WHY GRAFT A CACTUS??

I unbox TWO new cactus plants.
They are grafted cactus.
I also shown examples of moon cactus in my collection... and give some reasons briefly to explain...WHY DO CACTUS GET GRAFTED?!
Oh and I'M POTTING UP MY NEW CACTUS IN THIS VIDEO.
Unboxed video filmed mid to late August 2022.

Errors...
Ignore my 7.6cm dimensions - meant to say 7.5cm, no idea why I said it!

FORGOT TO MENTIONS...
When watering any grafted cactus plant, ensure you water based on the care needs of the stock plant, so the bottom cactus with the roots. This is the cactus in contact with soil, its needs meed to be met.

If you look in my playlist you can find the original video for my purple Gymnocalycium moon cactus degrafting, incase you want to watch it, the thumbnail image was shown on screen in this video.