Until you sell, or the company get sold, or it goes under it is not over yet!
If it's time you are worried about remember Einstien said it's relative!!
http://www.pbs.org/wgbh/nova/einstein/hotsciencetwin/
You seem to have had good fortune with your other picks in 20 years. Applying your skills from the past it seems to me that you ought to have equal success here too!