Tri / Triathlon / Triathlons - do they float your boat?

Thinking of doing one for looming mid-life crisis; got a couple of years to get myself into good shape. I think this quote sums up my thinking best:-

Tri's great - being mediocre at 3 things makes you pretty good overall. Go in at whatever distance sounds most fun / challenge / suited to you - I'm slow but have endurance, so started at IM and still haven't done sprint or Oly.