.........They either sell their coins at a higher price or they give up mining XCN.........
After they give up mining XCN diff goes down and miners will receive more coins, but price not groes up after that. Price will be higher if there be any serious investors. At the present time investors are interested coins with limited POW (7-30 days). But XCN have POW period for many many years

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Well, I am seeing a group of investors/buyers who are good at bottom-fishing. They are building up a strong buy at 0.0000140 (19K) and 0.0000139 (100K) when the nearest willing seller is at 0.0000145. It is going to be a game of who will give up first.
Edit: Network diff has broken 320K at 323720.
I'm part of that strong buy wall, each time it goes down, I get a few more cheap coins, hold on to some or put at a crazy high sell price, sell the rest at a much higher price when it rebounds. It's been a good coin to invest in so far

I'm no whale though, more of a porpoise, but others have 5+ BTC buys slightly under what I'm buying in at, pretty healthy.