This is more of speculation rather than discussion in my own opinion because you are not certain this is what will happen at the end of five years, your 5 bitcoin could even worth less than what it is now but at the same time, all factors point to the fact that your speculation might come through that there will be an increase but staying through to that word of 5 years will involve a lot commitment and staying away from the forum because that might militate against holding that far.