Mt Everest - bodies - why not removed?

Here's an answer from Popular Mechanics 2012:

And How Many Bodies Are There?

According to a study published in the British Medical Journal in 2008, from 1921 to 2006, there may have been 192 deaths above the 26,247-foot mark. That gives the summit a 1.3 percent mortality rate, the study found.

All says he saw bodies starting at about 27,890 feet. "I didn't see any until I hit the Northeast ridge, then there are probably five or six within 5 meters of the route and 10 within 10 meters of the route," he says.

"The sherpas don't want to touch them. It's a religious issue. And you can't carry them down because you're close to dying yourself. It would take tens of thousands of dollars to bring them down. You'd have to have an entire expedition to get a body down. It would take five strong climbers at a minimum."