But comparing Medieval Europe with the prehistory communities is not exactly apples and apples, is it?
And, there were benefits to being migratory. Animal domestication occurred in nomadic communities that than settled.
Antibiotics had their beginnings in herbal medicine (still practised); wash and burn wound treatment is highly effective if extremely painful.
There is some suggestion that division of labour developed among nomads also. Leaving some immobile members of the community may have been a problem, but with others it would have meant loss of valuable 'corporate knowledge', so a trellis was invented, as was the profession of nursing.
Shortages of food led to other innovations: smoking meat, yeast-less bread, fruit drying.
And then there are the dogs :-)