Would you rather receive a 4090 PC for free, or every game you'll ever want that's released for free?
Games for sure! It will add up trying new ones at release each year and I predict the price will keep going up for new releases! Used to be what? £35 ten years back? now it's like £80... following the same pattern you'd probably break even with the 4090 pc within 5 years if you played only 5 new AAA game every year! then you keep enjoying the free games