One of our dogs has pretty severe arthritis in two of his vertebrae; he's a Great Dane, and arthritis is common for giant-sized dogs. I've had him on glucosamine/chondroitin for several years, hoping to avoid it, but he's to the point he either needs to be put on Rimadyl and Tramadol, or this new laser therapy. Danes have a life expectancy of 7-8 years, this guy is 9, so he's old. As far as cost, the Rimadyl/Tramadol is more expensive in the long run, and could damage his organs. The laser therapy is more expensive in the beginning (he'd get 6 treatments in 2 weeks), but then is less expensive for maintenance, at one treatment per month. This lasert herapy is a new treatment, having only been used for a few months by my vet. They told me it seems to be "almost" as effective as Rimadyl/Tramadol. I'd for sure prefer to go with something holistic such as this laser treatment, but wanted to get feedback from folks who may have used it. Thanks!