[Closed] Vespa ownership - talk to me

I think I'm having a midlife crisis, but instead of some fancy sports car, I fancy getting myself a Vespa.

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I used to have one years ago, PK50. It was a brilliant little thing, slower than a snail on crutches but great fun.

I've been looking at px125 models, early eightiesish.

Anyone have any experience and advice to offer? Models to go for or avoid?
What I could expect to pay
Things to look for when inspecting any potential buys?

Cheers.

Edit+ I should add, I'm not new to bikes, grew up with them and have a full bike license, but have not had a motorcycle for about fifteen years...