As someone who correctly called the price of the PS5 Pro at 700 USD and think it is a fair price, 350 euro would be wild for this.
OLED + 120HZ shouldn't be more than 50 dollars.
There is a ceiling on how much a cloud streaming device should cost at 250 is definitely at the upper end of that ceiling, if not surpassing it already.
I definitely think 150 LCD @ 60Hz and 200 OLED @ 120hz is the right move here.