People looking to climb Everest usually pay anywhere from $30,000 to $60,000—and in some cases up to $90,000—for all of the equipment, permits and support staff needed to make the trek, but Arnette said people he talked to weren't focused on the potential loss of their investment.
"Yeah, they want to go climb the mountain, but they're also keeping things in perspective," he said. "At some point it shifts from being about you to being about everybody else, and I think people are going through that transition right now."
Seattle-based mountaineering outfitter Alpine Ascents International lost Sherpas in Friday's accident, and was pulling out of Everest altogether for the season, Director of Programs Gordon Janow told NBC News.
He said the decision was made "as a mourning for the Sherpa and climbers that were lost and not wanting to ask people to climb through the area where their friends and brethren were just killed."
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Asked about refunds for their customers, who paid about $65,000, Janow said it was something they were considering.
"Traditionally there haven't been (refunds) but we have a long-standing relationship with our climbers and we're talking to them. I'm not ruling anything out. There's not a precedent for this."
Arnette said he believed there is about a 50/50 chance the entire climbing season would be scrapped.
Janow was less certain. "It's hard to say, we've never had anything like a Sherpa boycott before— hopefully it will affect their working lives in a good way."
—By Hasani Gittens of NBC News. The Associated Press contributed to this report.