GRIN will make you GRINHate reading sentences? You should work on that. Here's bullet points on why I believe holding GRIN under $10 is a good long term strategy.
Is like bitcoin, but with privacy.
Similarities to bitcoin: no pre-mine, anonymous founder, PoW, not an ICO
github.com
Strategy:
Buy dips under $10
Have sells at $10-13 to 'lower' your buyin
Buy more dips when it eventually tanks below $10 because someone is accumulating
Alternatively, buy on (if it happens) the newly appointed titanium support of yearly ATH
Be patient