When I was in my teens and first getting into photography, the Petri 7S was popular as the least-expensive decent "real" 35mm camera there was and quite a few I knew bought them. I opted for a used Mamiya SD instead. Those who bought the 7S had good luck, but most of them wished to "upgrade" ASAP and often bought such things as the Spotmatic, SRT-101, or Nikkormat and went the SLR route.