Which is more profitable kpop or jpop?

Quote from crystalblues

Japan still buys primarily physical albums and most of the population collects CDs and Vinyls so they are a key part of the market. They tend to support every artist they like even one song from as they view music as a artform that is required to live so they want to support them where they can. However unlike some of the obsessive fans in K-Pop most do not care if their idols get married and ask before touching them or even giving them a gift. There are a few bad apples in fan groups (AKB48 we see your fans), but most fans are more respectful.

So, although K-pop really has focused on the west recently Japan is still their most important market as they are such an supportive country when it comes to music and other arts. I do not think that will change anytime soon. Especially since in Japan entertainment is everywhere from TV to collectable stores to album shops to anime figures to video game themed parks. Many people do not leave their own country there so they will always be looking for new things and buying more albums

Ohhh thank you. Do they buy physicals because they don't have good streaming services?