RE: Nitro models planes
Nice? Almost all ARFs look nice.
The price of an ARF is like the odds on a horse. The longer the odds (lower the price) the less likely it is to be a winner. If you have a specific model airplane that's available from two different ARF mfg's, the more expensive one is less of a gamble. They're both gambles. One is just more apt to be a winner than the other.
BTW, I think there have been at least a couple of threads in the last month that ask this same question. I think if you'll do a search, you'll find the issue has been rehashed a couple of times.
There is a construction technique for wings where the wing is cut out of a block of foam in it's final shape. It is then sheeted with wood. The wood provides the majority of the stiffness/strength. It's a quick way to produce an accurately shaped wing. It usually produces a wing that is heavier than a rib/spar/LEsheeted wing.