It's probably worth the extra $$$, at least you won't have to deal with the frustration of parts that don't fit or are missing altogether. After the last couple Skymaster kits I've seen, I wouldn't buy one unless they were willing to sell them as "kits" where I have control over the majority of the construction. They don't want to sell you a non painted airframe likely because unless it's painted, they can't cover up the problem's that were there when it came out of the mold. I have definitely learned that the cheaper airplanes out there for the most part are not the best value. There will always be some exceptions, but for the most part, the old adage that "only the rich can afford to buy cheap" holds true.