First of all about the price that's not true, Steam has now a thing called regional pricing, in my region for instance it's sold for a whopping 38$ no less!
Second I agree that the game is well worth it even the ridiculous regional price.
They don't make games like these anymore, so much investment and content in this unforgiving well balanced RTS.
What if you buy it on origin? or they have regional crap there as well?
Either ways .. not sure if possible with this .. maybe use vpn/proxy to fool the system that you are in a area where it is cheaper?