Hehe, the price is still $0.15 !!!! In the beginning, I mined some coins for this and then moved away to another coin which has seen the price of the latter from $0.15 to 20 times increase, But looking back here, this coin is still $0.15. I think that the main reason was due to ASIC machines.
which coin did you move to, instead of bittube?
Hehe, Check it out: 0xBTC. 100 can be mined per day per gtx 1080 with price at $0.07 in the early dates. Now, only 1 can be mined per day per gtx 1080 with current price close to $2.00. The highest price increased to $4.50. But I more like a stable growth.