You mention "cheaper lines, but brightly colored".
Fortunately, that's not a real problem. I've found a lot of lines, on sale, on closeouts, discontinued, etc. and like you said.............. they're usually bright orange, flour.yellow, etc.
However, if the price is decent enough, I'll buy the line anyway, (and, if it's a line, worth the price) then simply die it to a more subdued coloring. Unless, your competitive casting, or you just like to throw 90' of line, for your average fishing you only need to die the first 30 to 40 feet of line......not the entire thing.
I've been lucky to find a lot of my fly lines on sale, then merely change their color, to something more "fishable".