Quote Originally Posted by 2014SE View Post
COST. For what it would cost to build aluminum tracks and save 20-30 pounds. People complain about the cost of Escargo tracks now, if you ad 20-25% more for aluminum no one would buy them.
After a little research I found 7075 aluminum can run as high as 6 times the cost of cold roll steel.

6061 aluminum can run about the same price as cold roll steel.