Good for you, if you never had any problems.
I'll NEVER (sorry, couldn't resist

) let anyone take a judgement call on an expense of that importance.
Yes, I'm my own PPI (some here have an idea of my background), but it doesn't matter.
For that kind of purchase, before final signature on the contract, you need to see it in person.
One's minor flaw could be a dealbreaker for you.
And the opposite's also true (like in this post), a picture's worth a thousand words, but sometimes, the picture talks too much, and is prone to assumptions.
After more than 2 decades in he automobile industry, a decade as an highly specialized mechanic, I still recommend seeing it in person.
And yes, of course, PPI inpection from someone you trust.
As mentioned, good for you, hoping that you won't get struck at 1 point (Murphy's law).