I guess that it would depend on each individual. From a strictly pragmatict standpoint it would be anything over 1. Shoot the heaviest bow that you could accuratly and be done. You would learn that bow inside and out and be totally familier with it. However with the nature of recurves and longbows you will need to have access to several to determine what that weight was since they are not adjustable for poundage. How do I know that I cannot shoot a 70# bow unless I have/try one. For myself and many others, I look at traditional bows not only as a tool to take game, but also as a work of art if you will. I appreciate the different designs, woods etc of different bows. As long as my family is not negatively affected by the number of bows I have I do not feel that I have "too many". I fully understand that I would probably be a better shot if I were to stick to just one bow, but I enjoy having several to choose from when I go hunting/shooting. If you are happy having only one bow and are effective with it that is great. If someone likes to own/shoot several different bows then that is great too. If you are happy with the number of bows that you own, then that is the number that is the "right number"