obsolete brass

I cannot believe or justify the asking price for these old timers.  Most of them can be formed from existing more available and cheaper cases.  .32 special is an easy form from 30-30 as are 32-40, 38-55, 375 Winchester.  25-20's crush down from 32-20's easily. As do .218 Bees with a bit more effort.  43 Mausers are easily made from 45-70 although a bit short.  My 25-35's say 30-30 but shoot just fine.  AND 45-90's are a given, think .22 short in a L.R. Chamber.  My Martini cannot tell the difference.  Even the old 30-30 can work in a .303 Savage if you don't get carried away with pressure.  I do not buy Starline,  They should produce some of the above mentioned brass.  But won't do it.