My thoughts on the current topic of solely PCGS sets being listed.

When I first started collecting coins someone said to me to buy only NGC or PCGS graded coins. That piece of advice has served me well over the years. I know some people like only one or the other company exclusively. I think they both do a fine job but can't understand why PCGS coins sell at higher premiums than does NGC's. Are PCGS graded coins better coins? Are PCGS grading standards higher? If they are than why is it that NGC hasn't found a single MS70 for a Sacagawea Dollar but PCGS has? Does this maybe mean that NGC standards are tougher? If they are tougher than why do PCGS graded coins sell at a higher premium? Is there a combined universe of NGC & PCGS graded coins? I think it's nice that PCGS graded coins are allowed in graded sets. That being said, I agree that there should be a limit, say about 49% maximum. Until PCGS allows NGC graded coins on their site, collections consisting of more than 49% should not be allowed.