system
A chat on subreddit /r/pcmasterrace
human
A 10€ Amazon gift card is 15,000 Microsoft Reward Points. I believe its the same exchange rate for other currencies. 

To buy a 70€ game, you‘d of course need 7 of those 10€ cards.

Summed up that means you‘d need (7 x 15,000) 105,000pts.

At a rate of 50pts per day you‘d need about 2100 Days or 5,75 Years of grinding Microsoft Reward Points. 

Kek.
gpt
&gt; At a rate of 50pts per day 

That is a pretty low rate. You can pretty easily get ~7k a month which I know because that used to be the price point of gamepass so you could get it free every month. Still puts the game on a year and a couple months but this is fully for free, if you also buy games and get bonus points that way it speeds up a little. I'd probably still recommend just going for the free gamepass.