No pictures to prove it but starting about 5 years of age, I started "flying" behind my parents box fan. Like a drug, It progressed to the point of needing stronger fixes. Within a couple years it progressed to line control gas models with .049 cox engines. Eventually I scored a radio control plane. It was then I knew I had a real problem. Although they've long since been retired, those RC planes are hanging on the walls of my hanger today. All of this contributed to this habit which now cost me about $800 a month, (taxes, hanger rent, insurance and fuel). This does not include the purchase price of my first plane and the kit purchase and build of my RV 7A.
So many wonderful people in aviation.
In all seriousness... it has been worth every cent.