First Fly Rod Advice

[FISH_STICK]

I knew that you guys would have great info. Even if I don't understand it all. Fly fishing seems to have it's own unique language. I was looking at some sets online and was thinking of going that direction. If I spent $100 -$150 on a starter set, would the line included be junk? What would a spool of 'good' line cost? I re-line my casting rods annually with a $20 line. I cringe when I see those $50 dollar lines. I can't imagine it makes that much difference, but obviously in fly line it does.
Thanks for the advice, maybe when I get everything together I'll ask about casting lessons.
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