The volatility of the share price is no where near as profitable at $4-5 as it is at the $1-2 mark.
Almost annually over the last 5 years, coincidentally? since the sprouting of a little Irish weed, the share price has fallen by up to half, then bounced back. Whether intended or not, there are monster profits to be made (30 up to 100% some years) when the price bounces back. I'm not game enough to punt on it, but to those circling above and in managed funds it would make a pretty tasty annual feast.