My car cost ~$20k new, and I could sell it for $3-5k, so I'm already ahead if I sold and bought another $10k car today.
Buying a new car only really makes sense if you're really interested in cutting edge technology or are very particular in the options you want. You can't really get a reasonable electric car used, so new is going to be your best bet there. However, you will pay more than if you buy a quality used car.
The $34,000 figure (2019) is the average for all new consumer passenger vehicles, including SUVs, trucks (eg F-150), luxury, etc.
A typical mass market vehicle will more often be in the $22,000 to $26,000 range. From a Honda Civic around $19k, to high volume trucks around $26k-$32k (all base model prices). The Ford Explorer is one of the only vehicles on the top 20 best selling list where the base model well exceeds $30,000; it starts at $36k, versus the F-150 that starts at $28k.
Identify your reasons for that and ask yourself if they're representative of how "the masses" tend to think about their purchases.
(the average used car price in the US is over $20k)
Dacia prices start at 8k, and their cars are decent, but they are comparatively old tech. It means they won't get the latest advances regarding fuel economy and the low price is partly offset by higher fuel costs.
All in all, expect to pay around 15k for a no-thrills new car.
Obviously, used cars are cheaper but that's apple to oranges comparison. We don't know how much the ID.3 will cost used, so it's pointless.
* https://www.grammarphobia.com/blog/2010/05/how-much-is-a-few...
* https://fullycharged.show/blog/surprisingly-positive-news-on...
I would guess the mechanical components, motors etc will potentially be more reliable than ICE
But I worry about the batteries, if my laptop is anything to go by it seems like they will eventually die and will be expensive to replace
Batteries are a worry. Price has come down, but used electric cars are very cheap compared to the ICE cars because of this very reason. Until the market figures out how to replace the batteries at scale, and then buyers figure out how to account for the battery this will not change.
Also EV's tend to have rebates and tax write offs that reduce their actual purchase price significantly. Which probably also depresses resale prices.