Agreed, I just see too many people that absolutely insist, they only build with x materials a certain way and any deviation from that is herasy. I tend to mix up materials and building techniques where ever necessary, or what I currently have on hand. I put together a crude set of plans for a jet recently, am working on that in it's rc form soon, it's already passed the cheap foam plate chuck glider prototype mode, so guessing it would fit as a scratch build, then again I scaled up a Guillow's free flight kit plane plans 200% and converted to e-flight, again, more fun there, so not sure how to even classify that one outside of kit bash or something. I tend to bounce back and forth in between that and bash land as well, even stick built bashes are alot of fun, but foam is faster and I lean towards that with completely new designs, but not all the time.

I also get these guys that insist one type of contruction is stronger then another, when it comes down to it, building lighter means less inertia, but building heavier allows for severe abuse as well and with most planes, you can combine the two to get the best of both worlds.

Having fun with it is what it's all about as you said and us rcers keeping our minds open, there is a giant universe of options most RCers would find greatly rewarding, they just gotta get over the initial outside perspective and dive right in, these "kits or scratch" take more time to do then arf's, but as your skill level grows, even that factor doesn't seem like much of an issue.