Quick TakeOn the secondary market, prices of Antminer S9’s have gone down considerably since July, according to data from mining equipment broker KaboomracksPricing trends have typically followed that of the daily mining revenue per Th/s (a profitability metric that combines total bitcoin mining revenue and the network hashrate)However, the pattern has diverged over the past few months as S9 prices continue to fall despite daily mining revenue per Th/s holding relatively steadyThis could possibly be suggesting that miners are pricing in lower expected profitability come the halving.