Less than 1/4 of the ARFs or ARCs I've had were purchased from a store. The rest were partially completed or fully completed models, kits or scratch, someone else started building and either lost interest in, wanted to make room for other models, or which I bought from estate sales. And then there were a couple I bought from young kids getting ready for college and needing money. These were usually the best constructed and best flying of the ARFs. Most of the commercial ARFs had some flaws.