I personally am sceptical of full resin kits, bit and pieces of resin for detailing are one thing, but resin has a few drawbacks that I think make it questionable for use in full kits.
It tends to shrink and distort with time and doesn't bear its own weight well. Structures like wings and vertical tails will sag and warp eventually.
Resin also does not always take paint well, it really depends on how they made that particular batch of resin, it can vary greatly from batch to batch.
The worst thing about resin is air bubbles under the surface of seemingly flawless parts. Imagine attaining a competition grade finish on a model you threw that kind of money at only to have a big peice of wing or fuselage flake away and reveal a big crater right under the surface.