For some context on why this person is so keen on selling houseplants, New Zealand is currently undergoing an absolutely absurd houseplant bubble. Variegated monstera plants are selling for north of $20,000[0] in some cases, and well over $1,000 in ordinary cases[1]. I have no idea what is causing the houseplant bubble, but I can say in my opinion that variegated monsteras are ugly compared to ordinary green monstera plants which grow like weeds and can easily be propagated.

[0] https://www.nzherald.co.nz/lifestyle/houseplant-sells-on-tra...

[1] https://www.trademe.co.nz/a/marketplace/home-living/outdoor-...