Hashflare is apparently almost out of available hashrate. The price recently went up 47%.
On December 8th, Bitmain was selling the Antminer S9 for $1,415.
Bitmain is now selling it for $2,725 and shipping it in February. That's a 93% increase and they won't ship it for two months.
I've seen this before...people get crazy over Bitcoin mining for a while, then reality sets in. They see radical price and difficulty increases, then finally quit.
mghaynes - you should be using 100% Antpool for maximum profit
https://hashcoin.co/poolThe reality you should be using Slushpool during the network congestion as Antpool does not share the TX fees with miners while Slushpool does and currently the block reward is by average 19 BTC so Antpool is keeping 6.5 BTC by average from each block, anyway HashFlare steal that so it doesn't really matter what pool you wil use
If anyone has an S9 he will tell you how big the difference currently is with mining on Antpool and Slushpool in favor of Slushpool