would offer $6.45 again?, page-9

I would expect that any opportunistic offer below 6 dollars would likely get rejected. Business has grown a bit since 2 years ago.
Profits for FY2019 (always remember to think about the medium term at least, not the short term) are estimated to still at or slightly above FY2017's profit. Money will likely still be invested growing the business (less aggressively though). I am happy to hold for the long term (5+years) and the dividend is quite good.