People collect different things...

[Ruffus]

Some collecting stamps, some cars and some seem to collect memories,.....
Then people stand in front of their "CV" and get thoughtful, where last forty years have gone to.

[CROSSBOLT]

Buying registration plates?

[Kansas kymco]

I have managed to collect a few things myself.   

Very greatful to still be adding to the memories.

[Neil955i]

Very philosophical Ruffus! Best not over think it, just get out and ride 😀

[randyo]

I collect maps, most, only have value to me, but I have a few collectibles an 1852 railroad map of New Hampshire (original), a 1763 numbered print of the Province of New York, I have almost all the obsolete 15' usgs quads for NH, and of course, thousands of boundary survey maps, subdivisions etc, in my archives.