I'm switching all my gear over to power poles myself. I've ran into the issue with the car cig lighter plugs where you just can't get more than a couple amp through them, ples they are rather large making cords big and bulky.
I've standardized all my electronic gear on being able to run from AA batteries or 12v and have 12v powered AA chargers. This gives me a few advanatges such as 1 being able to use automotive components which are cheap, pleatiful and reliable. Both out vehicles use the newer miniATc fuses so I standardized on those as well so that if/when I do build a cabin or put a rv/trailer on the farm I can follow the same standare and spares for everything will be the same and I could borrow parts from one to fix another. 2. I'm eliminating inversion loss, since inverters are classified as power supplies they fall under the energy star rule of having to be at least 80% efficient and I haven't yet seen a store bought inverter that has the logo so they are all wasting at least 20% of their power.