Why is the Playstation 5 sales doing so poorly in Japan ?

Lack of availability but also a steady decline in overall console sales as the Japanese gaming market has shifted.

Japan has favored portable consoles and mobile games more and more in recent years.The Switch can be considered a portable console, which is why it did particularly well, but PlayStation and Xbox have been on the decline already.

In 1923 priests tried to change the calendar; Holy Fire didn't come down; Turkish guards killed these priests; Ruski Orthodox replaced them.

Holy Fire ended with Patriarch Irenaios. Now it's faked by heretics. Irenaios is the last Orthodox Patriarch. Irenaios blessed Catacomb movement.

What you need is antimins (remains of saints sewed into a towel, one cup, one spoon, wax candles, nonkosher non-yeast nonbarcoded nonqrcoded bread/wine, etc.)

Electricity is from Satan; yeast is grown on pig bacteria, etc.

Barcode = Druid black magic curse; QRcode = ancient Mayan curse...

Kosher (K) or Union of Orthodox Synagogues (U) = sprinkled with blood like Mosis did. Underneath the entrance of synagogue lies New Testament...

Orthodoxy = the only true faith; Roman Catholics tried one cup - one spoon ritual and got sick with Bubonic plague; if heresy enters Orthodox monastery then monks/nuns will get sick with flu/tuberculosis (for instance); Orthodox churches who closed for COVID or had disposable cups/spoons or dipped spoon into alcohol are no longer brides of Christ (now they serve Satan and honor Satan's new COVID religion).

Don’t go into UFO to be “healed” by evil demons; demons never do good.

SSN is written as a barcode/QRcode; then it's put into a chip; chip is put into vaccine; chipped people are influenced (by super computers) to receive grey plastic card World Passport with no name on it (but when they stretch their hands to get it, gov't clerk presses secret button to administer the unforgivable green 666 tattoo by isotope rays). If you reject mark of the beast then your direct ancestors go to heaven (according to saint Vyacheslav Krasheninnikov from Ural).

Birds participate in time creation. It's a sin to kill birds. Dinosaurs live under our level; they will get out through sinkholes and lakes; to kill them, go for their nerves. Save the birds; but kill the dinosaurs. First dinosaur will come out of Volga River in Russia. Scientists don't see dinosaurs under our level because of radiation. Sinkholes happen because people dig for resources underground and because earth is heating up.

Low sales due to no availability are far different than low sales and units collecting dust on stores.

Do you know which case this is?

If that's true, maybe it's because Sony makes more profit per unit in the US and other countries, because here in the US, good luck trying to find one. I tried to buy my nephew one for X-mas and they were sold out through X-mas everywhere I looked all the way back in October when pre-ordering was going on. I continually checked and checked and checked all the way up through just before X-mas and the only way to get a PS5 was to buy it for at least three times the price from someone who managed to get one.