I had bought a Rinnai Japanese used water instant geyser in 2020 @ 10k when all other local new geysers (superasia, canon, nasgas etc etc) were available @ 8k.
After 3 years i am extremely happy for my decision. The japanese stuff is something different.
If you can, i would recommend you to get a used japanese instant geyser in good condition ....and you will have peace in life