For me building is at least half of the hobby. There are people who are just want to fly and that's their thing. All kits have value just how much is the question. If no one wants to collect or build it it has no value except to you. I have over 50 kits in the collection room of many types so that as my flying skills degrade over time I can still build nice planes that I know fly well and are from good kits that you cannot get even now.