Yes some might be spending that amount -- but the real problem is that there are so many new/inexperienced outfits, that prices have actually been driven down -- if you shop around you can get up Everest for under $30,000 nowadays with some cheapo guide co. -- and they may or or may not inquire/care about your past climbing experience -- they just want your money.
Imho they should make it a requirement that anyone climbing Mt. Everest should have climbed at least one 6,000m+ mountain before. Everest shouldn't be anyone's first mountain. It's like getting a Lamborghini for your first car, or an Arowana as your first fish -- problems will almost assuredly ensue.