A lot of posts on here talk about lines lasting years. I'm lucky if my floating lines last months. (I use John Norris Pro brand). I know I'm hard on them, in particular I've a bad habit of standing on them when casting

However I don't have the same problem with inters and sinking lines - partly due I suppose, because I use them less.
A very experienced fisherman told me the other day that he can go through 2 lines a season mostly due to the sharp rocks and stones at his venue.
So, accepting that some cheap lines might be rubbish anyway, is it realistic to expect a floating line to last years given due care and attention?