So the only case where I could use a type 2 cable would be free top ups in Tescos and similar. Is that correct ? If so, it would take a lot of free charge to repay the cost of the cable.
Simple answer - Yes !.
But I would not just DIRECTLY focus at the cost, yes of course this plays it's part.
But consider this, it is more of an insurance back up plan.
E.G. - You are on a journey with your family and for some reason, you hit a "Road Closed" / "Diversion" sign ahead ( happened to us twice last week ) you are running a little low on juice and it would be a good time to take both a toilet break, stretch your feet and grab a drink.
There is two super market's close buy and they both have "Free Vend" 7 kw posts.
You rock up, but you don't have the required type 2 charging cable - DOOH !.
Our, you pay a visit to a friend who has an EV but with an un-tethered wall box.
He only has a type 1 lead, so you are buggered !.
Similar situation, if the car offers the provision to handle a spare wheel, why the hell would you not have one ?????.
Personally, I would just buy one.
If you don't use it and move back to an ICE car, then just sell it on !.
I bought one about 2 years ago, I have used it about 6 times that's all.
Do I regret it - No not at all.
Same for the spare wheel !.