I'm still counting them. Not so much for the pure number anymore as I now know that places like Scottsdale are just loaded with them, but more seeing where and when they tend to be concentrated. In the last several months I've noticed that my own neighborhood is - or already has been - becoming another hotbed for Teslas. Other EV's too, but I have a hard time spotting most of those, other than the Mach-E. When I leave the house and get on the freeway, I go through a stoplight at an interesection I've now labels Tesla Corner. It's most common (over 75%) for me to see at least one other Tesla there before I pass through.
On the other hand, there are Tesla deserts. My suburb is well-off, consisting mostly of large, single-family 3-5 bedroom homes with garages. The oldest houses date to around 2000 or later this far north in Phoenix, so everything around is new in the last 20 years or so. Everyone has two (or more) cars. Everyone can charge at home. There are a fair amount of apartments going up in the area too, mostly along the freeways. (Who else wants to build a house next to a freeway?) I see on apps like Plugshare that most of these big apartment complexes have a couple of destination chargers, but it doesn't seem like 2 chargers are going to be very useful. Once I head out of the city limits, or I go through an older housing area where most houses just came with a carport, Tesla density drops like a rock.
I took two road trips to California in the past few months, and I used two destination chargers and was frustrated in my one attempt to use a non-Tesla DCFC, and EVBlink (I think) station right across the street from my hotel in Hanford, CA. Two stalls, one of which had a non-working credit card reader (all scratched up). The other one plugged into my CCS-2-NACS adapter, which I wanted to test for the first time. I had to download an app to get something started, but when I plugged in I just got errors in the car. I looked up the place in Plugshare just now, and I don't see the charging network, just a US Bank 50kW CCS/Chademo device.
But I had better luck with a couple of other chargers, and learned that everything is different from Superchargers. In San Diego I had to pay $23/night parking, but there were two EV Blink destination chargers available. I could not figure out how to get one to work the first night. The next day I went to the hotel desk to mention they weren't working, but it turned out they had to come out and enable it with a key, plus charge to my room. I did that for the next two nights, and it worked fine. Not sure the billing, but I think it was free one night (hotel guy probably messed up) and only $2-3 the next night.
In Lemoore, CA, a small town in what used to be a marijuana desert, I found a working 7kW charger in front of a pot store, of all places. And it worked fine via an app. I think it was EV Blink.
Yes, everyone was correct about California having Teslas everywhere. Even the rural areas had a lot. But SC's were also no more than 30-50 miles from almost any point I visited. I can't imagine how hard it is to travel without SC's. I predict that 2025 will really be the Year Of The EV in the US as that is when all the companies will have NACS ports and a lot of SC access. I think a huge amount of people are waiting on their EV purchase for this, if they haven't already bought a Tesla, like me.