My collection of fly rods is worth more than my car. Why would I care about the cost of tippet, the thing tied to my fly - the reason I am using a fly rod?!
That said, I have not found any advantage with fluorocarbon over really good nylon. My knots don't slip with Rio Powerflex Plus, and my nymphs sink just fine. The abrasion resistance is more than adequate.
Two weeks ago I caught over a dozen fish between 14" and 18" using 6x Powerflex Plus, never once re-tying my knot. These fish put a pretty good bend in my $900 Sage 5wt, and not one fish snapped my $10 tippet.
That said, I have not found any advantage with fluorocarbon over really good nylon. My knots don't slip with Rio Powerflex Plus, and my nymphs sink just fine. The abrasion resistance is more than adequate.
Two weeks ago I caught over a dozen fish between 14" and 18" using 6x Powerflex Plus, never once re-tying my knot. These fish put a pretty good bend in my $900 Sage 5wt, and not one fish snapped my $10 tippet.