Re: Does line price dictate quality?
To share my opinion on the original question, I think the answer is yes.
That said, there are some fifty dollar lines out there that will serve you well. You don't have to go for the most expensive line, but I would stay away from the cheapest stuff.
Like Silver said, matching the profile or taper of the line to the action of the rod is very important. It sounds like you're getting some advice on that.
Personally I would shy away from a bright orange, but I used to fish the Cortland lines in a light lime green. The color wasn't a problem. For the spookiest trout, I'd prefer a drab colored line.
There was a thread on the forum recently about line care, but I don't remember the exact title. You might do a search. After investing in a decent line, you might want to clean it periodically and possibly use a line dressing to maintain performance.
"Sometimes the least important thing about fishing is fishing." --Roderick Haig-Brown