Like anything you can spend a lot or spend a little, or somewhere in between. Sage, Orvis, Scott are all high end rods. If you can catch fish you can do it with an expensive rod or an inexpensive one. The higher end rods have excellent warranties and if you fish enough you will break your rod.
Now that didn't answer any question you had, but I would suggest a 5 wt in a 9' with a Weight forward floating line. This is a versatile size and you can fish dry or wet flys, even streamers.
TFO is a good mid-range brand. I bought a 5wt combo in a
TFO at Bass Pro for around $200. My wife loved it! it was her Christmas present that year.
You can spend as much as you want, but the rod won't make you a better fisherman