Matt Schultz, who is executive chairman of bitcoin miners clean spark, confirmed that almost 250,000 to 500,000 mining rigs are still sealed and packed in the U.S. Familiar information is also confirmed by Ethan Vera who is a chief operating officer of mining service from Luxor Technology.
From the bad performance of the mining rig market, we can estimate that the prices of mining rigs are still high for investors. Another reason of less investment in crypto mining is the surge cost of hosting machines globally.