1-5 years is wonderful.
Although, if you take into account the speed at which technology has improved, and what we're capable of doing in 2017 compared to the past, then you'd have to shorten that timeframe.
"Just my opinions, folks. Do your own due diligence & make your own decisions. DO NOT... I repeat... DO NOT make any investment decisions on my comments. They are my opinions. That's all they are... OPINIONS."