Funny thing that...I started out with a Canonet and really liked it; the whole RF vibe works really well for some things (and poorly for others). If I could justify the purchase, I'd probably go out and get a Bessa R2A or R3A. I still really like what SLRs do, so I can't see selling my Minolta kit. For me, the reason for buying a Russian (Ukranian) rangefinder is to see if I really like using a rangefinder without jumping right to a Bessa or a Leica.
And no, it's never either too early or too late for a mid-life crisis