Yeah, Peugeots mostly were not very good bikes. I test rode several of their high end PX10 bikes and I was just never impressed with those either, they were very flexy. But they were nice looking bikes. The one you have in particular is a lower end 70s era Marseille, it might fetch $100 if you clean it up, remove all grease and oil, lube the chain and all pivot spots, plus where the cable goes into a housing, give it good wax job, and find some low cost tires..