there was a time when i could NOT lay off a nicely priced Colt's Detective Special or Cobra (2" normally, .38 spl revolver)...
as of late (the last year or so?) ive gotten to this same point with 580exIIs!
i started with 2 and some MiniFlex 5TTs. then i added another of each. ive also looked very very closely at the 430exIIs on the for sale forums and was just about to look for more 580exII speedlites?
is it a sickness or just me?

