Hi Perry,
No reason for not planting if you like experimenting!
I saved some seed from a Courgette 5 years ago. it was a climbing F1 variety. Each year the seeds germinated okay, but the plant provided a different fruit each year. Last year I had butternut squash from it, but they had none of the sweetness. Unfortunately they all failed to give me viable seeds for this year…
Another issue is whether you have the same growing conditions as those used to provide the flavour of the plants you ate and saved seed from. For instance, I never was able to replicate the flavour of my fathers potatoes which he grew in South West Scotland. I live in NW Kent inside the M25. It was only a couple of years ago I learned that Jersey Royals from Jersey are grown on steep South facing slopes so they get the Spring sun on them more than on flat land as I have. With retrospect, i now realise that SW Scotland has mild Springs and his garden was on a S. facing slope.
Trust this info. helps you manage your expectations.
BR
Neil