I don't think I saw anyone else mention this, but understand that if you elect for the surgery, the odds of the other CCL tearing are much higher. We were warned about this when our dog tore her CCL and thought, well, she's limping and seeming like she's in pain so we will risk the surgery to fix the pain she's in now and if the other joint goes, it goes. They had us do 8-12 weeks of at-home physical therapy (increasing walking distances, doing range of motion exercises, etc.), and once the time frame of "your dog should be good to go" was up, we let her do her thing without restricting her movement at all and within one week she was limping on the OTHER side. So please just note that if you elect to pony up the money for surgery on one side, be ready to pony up that money again for side #2 within 1-2 years. This differs of course with the size of your dog, energy level, etc., but it's a rather large expense to incur twice, so I just wanted to mention it.
That said, we paid for TWO knees for our bionic dog and don't regret any of the money we spent. She was 5 and was incredibly active and a life lived behind baby gates and away from other animals was going to be no life for her. She now has total range of motion in both joints (though obviously stiff at times, as arthritis is kicking in), and is able to run and play without pain. We would do it again (FYI we did TTA not TPLO). Just be prepared for quite a bit of post-op attention, as their recovery time can be greatly impacted by how much time you do or don't devote to post-op exercises to build that strength up again.
We did actually try conservative management first before opting for surgery. I tried a solid 6 weeks of containment hoping that the scar tissue would do its thing, but it did not help at all. We tried supplements, chiropractic care, holistic care, and nothing worked. Surgery was the last option in my mind, but it ultimately was what helped her return to a normal life.
Lastly, note that some supplements they suggest for conservative management are blood thinners (I'm forgetting which but it may be fish oil and/or turmeric), so make sure to halt any supplements (or just ask your vet about it) at least a week or two before surgery.