I always read comments to the end lol
The sale formula will recieve a major overhaul, which will make it depend on many more variables (inluding market and used technology), probably around June 2021.
I have lots of achievements planned out, and in 0.2.7 I've added 2 tiny easter-eggs related to names already.
TDP and heat etc. are something I want to add, I don't know how I'll integrate it to the existing gameplay just yet though