Purely from a math perspective, a $100 increase is more inline with the 30% tariff (based on a $400 or $500 MSRP) than when the tariffs were first announced ($120 increase / $150 increase respectively).
The price increase on the games is similarly inline (30% of $60 is $18 dollars, so $80).
While I'm sure greed played a part, if the profit margin from production cost to MSRP is already slim (which, it often is...
reports are that the Xbox X costs around $470 to produce), then companies have a lot less wiggle to eat the cost of any tariffs.