I like the building, yes the price is a little bit overpriced. I like that Mannerheim says: under 10k is more acceptable 9950.
I have an extra idea. Increase the limit of Recycling Manufactory. If is technically possible count how much building we missed (events etc.), and we can buy if we don't earn all in the past.
If some1 says endless coal is not fit to me, I buy Recycling => More player spend gem and more player would be happy.