I am more into holistic approach so when I saw them I considered her chin and thought it couldn't make it worse! I always used holistic with my dog and yes, it's more of a proactive approach (supplementing with glocosamine at an early age for later joint problems).
Thanks for your input. I think I will look into online prices for the joint ones. Acacia, as I said, is 6 years old now. She is the oldest rabbit I ever had (partly because she is my first rabbit) so I'm not really sure what to expect. I supplement her timothy hay with alfalfa every now and then.