May be you are right it will take long time to achieve the price of $2k and I don't see it happening in this year and even if it touches that price in next year, it will not stay there for long term.
I think it will take 15 to 24 months for the bitcoin to rise to $2000. After the introduction of SegWit, it could be faster.
I believe if the SegWit or the Block size increase is implemented, the bitcoin price could be at $2000 in 12 months.