Hello, i've been looking at getting some trekking poles for a while now (i still have the link to those rei poles, thanks byron!) but i haven't took the plunge and got them because i'm a little unsure about them. I'm going on many long hiking/fishing trips this year (10+ miles) and i thought that they may help save my joints and not let my legs tire out as easy on some of the more grueling trails. I know they're not real expensive in the grand scheme of things compared to rods and reels, but i still want to make sure i'm going to get something out of it before buying them. So are they worth it? Do they really make a noticeable difference in making hiking easier? Thanks.