SIDs came about for Cessna due to their non-life-limiting of their aircraft. Mr Cessna did not think that his personal and business-oriented aeroplanes would still be bogging around doing RPT and CHTR at 30+ years and 30,000 + hours!
Mr Piper, on the other hand, life limited his aeroplanes (PA31s) to 13,000hr before a wing spar mod, then another 13,000hr to airframe retirement.
Beech has a program of wing bolt and undercarriage replacement / maintenance that - as the aircraft age - make continuing to use them a dollar-negative exercise; essentially having the same effect as a SIDs program.
Certainly buy an aeroplane if you can afford it for yourself and maybe a few close associates who know what they are doing; it is one of lifes real joys to own an aircraft. BUT don't put it on line to offset the costs, you will lose.