Bottom line..... THERE IS NO CURE.
Keep Calm...and Canon On
and then I found Nikon and was additionally afflected with NAS (Nikon Acquisition Syndrome). In one year I bought as much as it took me 5 years buying Canon stuff. I was slow to start.... My Canon 24-70L II will ship once my dealer (B&H) is back to dealing again.
oi... Ditto. 2012 was at least $15k in new Nikon and a bit of Pentax gear. Offset by only a few $k return from selling off some Canon bodies that had been annoying me, a couple unused lenses, and less than a $k in print sales.
I'm certainly not cured of anything either but now that I have what I like, I've really slowed down. 2013 is only likely to trade/upgrade one or 2 Nikon bodies and add one more Pentax, 2 if they bring out a FF body.
Sorry Canon, you didn't get one penny from me last year and it's not looking too good this year unless I see a really
good sale price on a 6D/kit. Actually, this year's looking good for me selling off more glass. Will likely have a net inflow from liquidating inventory.
Oh, and thanks, OP, for starting this thread. (my most enjoyable expenditures in a long time)