When I wash my Model S in the driveway, people walking by will often come up to tell me how much they love their own Tesla's (or wanting to know how I like mine). Never had that happen when I wash my Audi :) The Audi is even the more expensive car.
That to me sound like something one should take seriously because it shows that robust network effects are in play. A few people buy an EV and have no problem with them, that induces more people to consider them as a valid option.
I'm in an apartment complex, and there's 2 downstairs, and I walk past 2 houses with them in the driveway on our ~1.5km walk to my kids favourite park. They are in fancy houses over towards Windsor/St Kilda end, of course, but they're here.
You'll also see a couple on Chapel St on any given day walking down it, and plenty around St Kilda (there's a house with an S and X off Fitzroy St where the kebab shop is but I'm not sure what that road is called, and an X always outside a pub near there).
I'm not exaggerating to say I see a few every time I go out. Whether that's just because of the area, I'm not sure. I only moved here (to VIC) a year ago so still learning what the local demographics are. I mostly stay around the Prahran/Windsor/St Kilda/Albert Park areas day to day.
I'm legitimately surprised how common they are here considering the price and charging issues. There's a few Tesla charges around though, and Chadstone has a Tesla dealership now too.
Get back to me when you're seeing them en masse in Frankston, Campbellfield or any other working class suburb.
I have no idea what you're on about with it being one of the wealthier suburbs either. It's not on any list I can find online. As I said, I moved here recently, and still learning demographics, but it seems like a pretty average inner city suburb. If you head over to St Kilda proper, then sure, there's some crazy houses there, but there's also housing commission and junkies and students and backpackers everywhere too.
And wealth is generally based on average house price which is $1.5 million in Prahran i.e. towards the very expensive end across Australia.
Also, the average cost of a unit (which most people live in here, by a factor of around 6:1 depending on source) is $490k, which is quite cheap for inner Melbourne. I rent a 2br here for $500pw, which was among the cheapest I could find in inner Melbourne. You quoted the average HOUSE cost, in an inner city suburb where houses cost a fortune due to being rarer and more popular among wealthy people. All of which is irrelevant, but if we're nitpicking over data in a casual comment about what I've seen, then we might as well be honest. It's not a "rich" area.
Context matters in both of the above. Of course anecdotal data is biased by the person's situation, location, etc. That's why it's anecdotal. It doesn't mean it's not still relevant.
In the context of sharing our personal anecdotal observations of a very expensive electric car made in niche numbers in another country, with zero local presence other than some "dealerships" (store front in a mall with some customer service staff), I thought it was still quite interesting that I regularly see them, that's all.