I really hate when some people say that bitcoin has no value at all. OP is correct that time will make bitcoin very valuable. The paper money was perceived to be valuable so we can also do it with bitcoin.
No doubt that bitcoin will be more expensive and more valuable after ten years. The future is that of cryptocurrency and bitcoin is on top of all other cryptocurrency. I think that after ten years the price of bitcoin will be more than 100k and even half of the world will use bitcoin for their daily expenditures. Everything is digital now and so will be the currency.
6 digits is very huge price for bitcoin. It means that it will grow upto 90k more in the coming 10 years. it is not impossible but difficult because the price is not growing regularly but also decrease due to huge volatility. As we saw in the past few months. Price depends on the market cap and when more and more people invest in bitcoin the price will go up.
A price above 100000 in 10 years is not that high, I understand that it may seem so but think about it, the all time high of bitcoin was 20000, bitcoin only needs to grow five times that price or close to 10 times its current price and while that is a huge growth it is not something that is outside of the realm of possibilities especially if we take into consideration how weak the world economy is right now.