i said previously when you were asking, i personally wouldn't have (and didn't as you know) buy a new one, for a couple of reasons, but this lockdown will continue for sometime, and working in healthcare, even when it does, this will not mean everyone can just re-set the clock by 18months. (sadly)
i dont regret buying it at all. I did check and ive done, just over 100 miles since purchasing it. Although i start it once a week to keep the battery topped up with a quick journey and get everything up to temp. (take it shopping for the weekly shop)
i dont regret buying any of the cars i have. The 32 ive owned now for just over 5 years and i have only driven it off the trailer. 1st drive maybe late spring id imagine, when the roads are better, etc but will just be a quick blast nothing else.
only you can decide if its the right time to buy the car you ordered.
for me buying a slightly used one, with a significant (in my view) discount was the right for me.
its never going to gain money, only loose it, at what rate, who knows.
i will also just add that the covid restrictions worked in my favour and the buying process was very easy and simple overall. i would have not changed how i bought the car even if we didnt have covid.