I think the idea of boycotting buying cigars is actually going to be slightly counter productive. Some B+M's have said they will struggle to stay open with the new taxes and I think this would be far more sad to see B+M's close than paying the price increases. In the end the tax will likely not go away, we are going to be stuck with it. It is similar to gas prices, people often say "I'll stop buying gas when it goes over $X.XX" but we all still buy gas. The same is likely to happen with cigars, "I'm never buying cigars again", but we all know we will.
Side note: After talking with Micah at the Party Source, the price increases won't filter down from the manufacturers until the B+M's order new stock, so there should be some period of non-SCHIP prices on certain cigars.