i own a wby 300 mag and shoot the wby 150 gr sp not because of price but because of: 1] ballistics and 2] accuracy.i have used rem 150 gr corlokt in my wby 30-06 since 1970.i have found no advantage of using the 'PREMIUM' loads in any of my rifles.the reason i selected the wby load was because it out performed the rem corlokt at 300 yards.it is just a personal choice.i think i paid about $40 for the wby brand but that had nothing to do with the decesion to pick them.i do not consider them 'CHEAP" but the right load for my gun.