I know I have been using this site since 2015 and maybe even longer as I bought a 1974 DT360A back in 1986 for $300. Wasn't a classic at that time but just a 12 year old bike that had not been ran for 8 years. The woman I bought it from was the original owner and she bought it while stationed in the Navy in Guam. Once she moved stateside she drove it a few years in Georgia. She eventually moved to the Dallas area where I purchased it from her.

My previous bikes in the order I bought them:
1967 Yamaha 60 (my first at 11 years old)
1970 Yamaha CS3C (bought from my Brother)
1971 Honda CL350 (bought new)
1975 Kawasaki KZ400
1974 Honda CB750 (bought used on Tyndall AFB)
1974 Yamaha DT360A (Still have it).
1969 Suzuki T500 (bought from junkyard for a couple of hundred)
1973 Suzuki GT750 (Restored and owned for 10 years and sold 2 years ago)
2013 Honda CB1100 (Bought 2 years ago. First motorcycle not from 1960s or 1970s.
1973 Yamaha RT360 ( Bought 3 months ago).

At 69 years old I am hoping for another 8 to 10 years of riding if the RT3 doesn't take my leg. So far I have started it about 100 times without being bitten
and hopefully the lessons learned from owning the 1974 DT360A for 40+ years will keep that from happening.