“It’s not the most profitable type of business out there, but if you look at what type of group rooms or transient rooms it brings to the hotel, it’s significant. It sure is an amenity that you need to develop and you need to focus on,” Kerpel said. A 4- or 5-star hotel or resort without a spa would be conspicuous in that absence, said Todd Hewitt, senior spa director for the Four Seasons Hotel Toronto. “It’s now an expectation that any 4- or 5-star hotel will have a spa. It’s something people will look at when they book a room,” he said. But attributing value - either a certain percentage of demand or even revenue - to spas is difficult, sources said. While Miller said the Fairmont Scottsdale has seen a 35% increase in group participation since the Willow Stream launched, others said the correlation was harder to pin down. Get the full story at HotelNewsNow.com