Can't really buy PS5 and SX as they sell out pretty fast.
Even in Japan, they had to call the police and tell people to go home when they re-stocked PS5 last month.
We're not at the point yet where supply has met demand. So they're pretty much selling at the pace they can manufacture.
And they're having trouble manufacturing them because there's a global silicon shortage.
There's a global shortage of computer chips – what's causing it? | New Scientist
And scalpers are making things worse.