About 4 months ago, I bought a 2014 MS 60 that was a base model with no optional licenses other than lifetime Premium Connectivity. Nothing else - no SuC, no Nav, no Tech Pkg, no Homelink, etc.
Before I bought the car I had Tesla inspect it. I asked what it cost to enable SuC but didn't have them create a formal estimate as I wanted to drive the car for a few months to get familiar with it, and to see what the real life range was to determine if I even need it. They verbally told me $2500 which is consistent with this whole thread and with what I've read elsewhere.
Not convinced I needed it, but wanting some type of L3 charging capability as an "insurance policy" in case I'm out and about and end up having to make a couple unplanned stops and find myself 20-30 miles from home with a low battery which would require 1-2 hours of Sloooow L2 charging at a destination charger, but at a SuC I could "top off" my battery to take it from say 10% to say 30-40%, just enough tobget back home where I could L2 charge overnight. I don't take long road trips (>150 miles) EVER. I don't need SuC for that.
When I saw the CCS Adapter, which is now available in the US, it looked like a great alternative at a better price. The Tesla webpage said to login to my account to confirm compatibility. I did, and it say, YES, I needed the retrofit kit so the cost was $450 rather than $250 for the CCS adapter alone, but I was happy to pay it.
I scheduled a service appt and they sent a mobile tech to my house to deliver and install it. The tech told me I was the first person in the area to order it, this was the first one he had installed.
A short time later, the Additional Vehicle Info screen showed that CCS was Enabled. I excitedly headed to an EVgo L3 DC Fast charger station to try it out. It didn't work. I called Roadside Assistance and the first thing they told me was that I needed to upgrade my 40kW battery pack to 60kW.
Yeah, no, I already HAVE a full 60kW battery pack. The software limited 40kW battery pack was no longer being sold when my car was made. My range is 194 miles at 100% charge, down 7% of the original 208 mile estimate when new. The 40kW had a max range of 139 miles when new. My battery is not a SW limited 40kW battery pack.
They then said they'd have the Service Manager call me. His answer - CCS requires Tesla SuC to be enabled first, and, oops, it's not $2500 it's actually $12,000 but that includes FUSC. TWELVE THOUSAND DOLLARS!!!!!
Did I mention I don't make long road trips and really don't think I'll use SuC except in emergency situations, to get home w/o spend hours at destination chargers? I'm not planning on stopping at the SuC for everyday charging, I have a L2 home charger that charges at 9kWh rate which is fine for home charging.
I'm not obsessed with FUSC, I'm perfectly OK with PayGo SuC, I just need the SuC "right to use" license enabled, like the OP, at a REASONABLE price. I didn't feel, for my limited use case, that $2500 was reasonable, and TWELVE THOUSAND is absolutely INSANE! It's a giant middle finger!
Like the OP, I find it really odd that FUSC for $12K is the only option they are giving me when they want to get rid of FUSC cars/licenses. And the thought that they don't want our old cars tying up SuC stations, I keep hearing how few of these early cars w/o SuC like I and the OP have - what do they think, the few of us will all show up at once? If there's so few, we can't be a big problem.
The CCS option sounded promising, and I have read about the "Other DC Fast Charging" firmware setting, originally for CHAdeMO, but many have theorized that it is used for CCS now too. I've never gotten a straight answer on this, only that, for CCS to work, Tesla SuC needs to be enabled first and it's now $12K.
I even went to a second SC to see if they would give me a different answer but they told me the same thing. All or nothing, FUSC @ $12K, or no L3 charging at all, nothing in between. I would be ok paying $1K to enable PayGo SuC.
I would even pay $2500 for FUSC which was the going price for enabling it after the initial purchase. There's not a chance in hell I'll pay $12k for FUSC, which I'm still not convinced I need or would use more than a handful of times a year.