If they only raised the price by $200 for 08, another increase is in the works for sure. I'm in the steel business and I know that steel has about doubled in 08 (or up about $.30 per pound for your basic grade.) So take the weight of the boiler, add 15-20% for scrap, and multiply it times $.30 and that would roughly be your steel increase. And of course this does not include any other cost increases but you can bet every other cost that goes into that boiler has gone up too. Not to mention a 6 month backlog tends to make ones "price increase" finger trigger twitch.
P.S. And steel is still going up, just not as fast. Hope the greedy bastards hit the wall as it appears oil has.