That's probably true, and a good point.
It relates to the 14XX quoted above; a very popular prototype, maybe an existing kit could survive but with the sad demise of Chris Parrish the Perseverance one is gone now, would another appear ever?
Other popular prototype shave no kit too - Beattie well tank, and will the excellent NuCast partners bring back the 64xx along with the 16xx?
There will always be those, like me, who would always prefer any half-decent kit to RTR however good, because modelling for some people is essentially about making models (which, I hasten to add, is no criticism of those who feel differently), but are there enough who feel like that to get over the problem Joseph describes. Sadly I doubt it (sadly, because I would rather like a well tank).