Price increases are often triggered by a supplier cost increase. Most of the time you will find that prices increase across all retailers at the same timeMany moons ago, when I was in retail liquor, we used a 35-38% margin to arrive at rrp. Someone out there may be able to confirm or correct me, as I suspect this margin is now 100% (probably even more) to enable discount cycles (at a smaller margin) now largely aimed at the e market sector and for those who don't do their homework, buy at the premium price (businesses can't go wrong)