Ryan, I won't go with out them anymore. When I started backpacking in the 1970s I tried one walking stick, then two. After many trips, stopped trying to get used to them or look cool, or what ever. I was in Boy Scouts and young and full of energy. I stopped backpacking in the 80s and just started again last year. My first hike was 9.4 miles in moderate terrain. Was very fun the first six miles. I got to mile four, ate lunch and wanted to get right back on the trail. Mile six came and I felt a very slight bit of pain in one knee. By the time we got back to the trail head three and a half painful miles later, I was suffering quite a bit. Would have been even worse if I hadn't borrowed my buddy's poles. I was still reluctant on my next hike and used them some and still didn't know if I truly wanted to give them a shot. Then I went to the REI used sale and bought a pair of REI Titinal trekking poles that were regular $100 for about $35. They have the twist locks that many say to stay away from. I can say that they have been nearly no trouble for me. I did six outings last year and had the lower portion slip maybe three or four times total. It never gave way all at once, but slowly and was never a problem except for stopping to adjust the offending pole. In contrast, the person I hike with had some Black Diamond carbon poles with the twist locks, and they continually slipped. He took them back. BTW, my poles have the shock absorbers. I think it just helps a bit to reduce, well, shock. Kinda like carbon poles are more comfortable.
You have had some good advice to buy cheap and try them out if your not sure. I know I'd never go back. They are a necessity now. I am 145 lb, fit, and 47 Y.O. I find they make it all much easier, less pain and more moving down the trail. Sometimes I feel a bit like I'm gliding when I'm in tune with my poles.
Finally, a friend mentioned PacerPoles to me. He spends a great deal of time in the wilderness, actuall lives there. The angled handles are supposed to be the trick. They aren't the most lightweight option, but maybe the most innovative. I think they are worth a look. I like the thought of really lightweight poles, but have good poles I'm quite satisfied with and so have never really done any research on the current state of trekking-pole technology. Good luck.

