Are older Vespa’s more expensive in repair?

Hello, I currently have a Vespa Primavera that I bought two years ago. But I have been dreaming about a Vespa older model for a long time. E.g. a Vespa Pk 50 XL. Or this scooter than 80s. But I am unsure about the repair costs. I don’t know about the scooters from repair and would have to have them repaired in the workshop. Is that more expensive than a newer Vespa? And does every workshop that also offers Vespa scooters t? Thank you for your answers. Vespa