In Canada, there are roughly 65,000 licensed pilots and 36,000 aircraft, 28,000 of which were built before January 2000. Many pilot owners are wondering how to upgrade their aircraft without investing a disproportionate amount of money versus its value.  Upgrades fall into four categories: safety/reliability; performance; compliance; and wiz bang.  Or Airframe, Power Plant and Avionics.  John Leggat, President of Leggat Aviation (www.LeggatAviation.com) reports “aircraft owners are investing into their older aircraft not only for safety and avionics upgrades but also driven by a sense of pride in ownership.”