I know that building lumber has doubled and tripled in price this year (you'd think it grows on trees or something)... apparently, so has copper. I'm going to extend my shop air line a few feet so I can relocate my benchtop blasting cabinet. So I just bought 10 feet of one-inch copper tubing, one tee, two elbows. Also two 1/2" tube-to-thread fittings and a 1/2 to 1/4" bushing. $77 The tubing alone was $46! Wondering if the price of Romex has similarly shot up.