I started an exit plan in 1993. Twenty years on I find I am 73 years old, still obsessed with this hobby, and have completley lost the plot of my exit strategy. My small collection is fully inventoried, pictured, and cross/tag referenced so as to i/d the lower of cost or current estimated value of each piece. Beyond the inventory management chore I refuse to worry about an exit strategy - I have had two heart bypass operations since 1993, worry is not good for that, so I just enjoy the day.