Eh, I would argue the Ryzen is a more significant upgrade than literally all of the other changes the model 3 has received since its inception. 4680s might be the next big one, but so far that doesn't seem to be happening any time soon.You say that now then in a month they will add the heated windshield wipers, then you hold again then it will be the cooled seats. Then you hold again and it will be the new batteries, and you will just never get the car because they are always adding something new.
If you need a car, you need a car. But I totally get why one would want to have the newer computer if they plan on keeping this car a while.