I do not think it has shifted. The problem is that there will never be a consensus on this one. On the pricing side the market is horribly skewed by artificially restricted supply; examples: Padron Anniversario & 1926, Opus-X, AF Hemingway, etc. As others already pointed out the price point and scarcity are often the driving factors among buyers of premiums and ultra-premiums. And, what one considers a super premium another will not smoke. Just because a smoke is artificially restricted to drive a price point does not make it a premium smoke, IMHO. It still must have superior quality at a price point which I consider a good value and that will always be a subjective exercise.I always thought it was pricepoint, then was told when speaking of premium, just think what was said earlier: Premium = hand rolled + no mixed or short filler tobacco. Ultra-premium = price & rarity.
But perhaps the definition has shifted?
To illustrate my point, I do not like Opus and find them extremely over-priced and inferior to other smokes. There are many cigars at ½ the price that I think are vastly superior to this line, ditto the 1926 since I find it inferior to the Anniversario (1964). However, the market positioning is such that many buyers are "price sensitive" in that they have a perception that the super premium must reach a certain price threshold. Couple that with subjectivity and personal preference when selecting a smoke and you lose consensus. What that means is that if I am trading with a brother who places high value on the aforementioned cigars, we are not going to be able to deal. While the general market may consider those cigars super premiums, I do not, thus, no deal.