For me it's because I've been collecting Transformers continuously since 1984. So basically it's taken me a quarter of a century of constant TF collecting to build my collection, which means that yeah, generally I do get to enjoy them because it's been a gradual process of accumulation rather than say going insane on eBay over a short period of time.

The Wonder Years

1986: 1988: 1989:

1997: 2001: 2003:

2004: 2007: 2008:

2009: