For a private plane used for leisure by the owner, there are no costs of downtime, only cost of maintenance.
There is a large cost even for the “leisure” owner: the inability to make it to EuroGA fly-ins 
Ultimately, downtime stops a lot of people flying, often permanently. I usually know of several who are selling out because they got fed up with downtime.
LeSving wrote:
will your subscription work financially.
Don’t worry. Reliability-Centered Maintenance already has worked out for me financially. Actually, I am not looking for financial advise. I am purely looking for engineering advise :-)
