The 3 to 5 movement does matter
even if you buy at 2.6 like i do, and sell at 3 + , at minimum you make 24 % each time
It does not matter if it goes down to 1.5, as long as you know it will reach 3 again. Which I have always been a believer of that.
Just don't get greedy, stick with a solid 20 % return on each flip. Your 70k would be 140k by now, or more, with minimal risk, and you would have twice the share number.
Even if you want to keep a core position, its stupid not to trade something when it pops 20% in a week.
Sell a third of your position or something, dont miss the ride.