It's eventually good to come back here and write about the PR analysis.
For the ones who missed the whole discussion about the buy Price vs Rent price index, you can find all you need in my previous posts:

1 - PR presentation: What it is, how to calculate, proof of concept, what I expect to get
2 - PR cap. 1: some data gathered, a starting look into properties that correlate with PR
3 - PR cap. 2: more data, I struggle with correlations, single card analysis to facilitate bargain hunting

I had a few very busy weeks, nonetheless, great help for the whole project came from @luke-wtp who get me in touch with @macr0s

to who I owe a huge shout out

for providing me with a python script aimed at getting PR values from all cards, all foils, and all levels in one minute.

Today I organized all the gathered data in order to be prepared for some serious statistics in the next week or so.
Then, some days to find the best ways to make the results visually appealing.
And finally, something good to say about it!

I'm excited! At the moment I've got PR values from march the 2nd till today, April 10th. I missed a couple of days but won't be a problem. I've got all the editions but Alpha and Beta (it was a mess to distinguish cards with the same name so we excluded them), all levels, and both regular and gold foil!
It's a database of more or less 60k to 70k data points, it's wonderful!!

Have a look yourselves!