I imagine they need that sort of pricing to make them commercially viable.

I am sure the market will bear the price for those calibres.

It is similar to comparing the 35 Whelen and 375 H&H. The problem with the 35 Whelen is there are some real 35 Whelen fans but the 35 Whelen won't support 375 type prices for ammo and rifles. Hence, the 35 Whelen is dead even though it has more potential users than the 375 H&H.

Mike