Enjoyed your post about Patagonia. Where did you fish aside from TDF? I was there in November of '99 and fished mostly the national park waters of Los Alerces. We had a boat and fished the chain of lakes and connecting rivers. Now, I've been to the rockies in Canada, but that has to be the one of the prettiest places on earth. In my view the beauty of the Andes beats TDF hands down. I know the lure of the big browns, but... I think a healthy mix of natural beauty and nice fish (16 - 22" or more) is more up my alley. You mention that prices are real high... you bet! The argie peso has been tagged to the U.S. dollar for 7 or 8 years. Additionally, you stayed at a lodge considered to be "la creme de la creme" of fly fishing lodges at a top destination.
Gotta pay top dollar for that.
Did you have a chance to go to Santa Cruz for steelhead? March and April are the months for that.