Due to mining availability being halved, around August this year, and if demand remains the same we could see it level out to around $800 a Bitcoin, so this thing my be around 80-$100
Alot depends on how many Bitcoins they burn thru. "Each GBTC share represented ownership of 0.1 bitcoins at the fund's inception in September 2013. The trust will not generate any income and regularly sells/distributes bitcoins to pay for its ongoing expenses. Therefore, the amount of bitcoin represented by each share gradually declines over time." Quote from link: http://ih.advfn.com/p.php?pid=nmona&article=66878339