We're a big fan of replacement programs. Optoma's Express program is a hybrid. This Express Program is US only.
For the first year it's a replacement program, Optoma ships you a refurbished projector should yours have a warranty issue.
For the 2nd and third years, it switches to a loaner program. In that case, when you call in and it's determined to be a warranty issue, Optoma ships you a loaner. When it arrives you ship to them your unit. When it's repaired they ship it back to you and you return the loaner in the same box. Optoma pays the freight bills.
All considered, the Optoma warranty and Express program combine to be more than most of the competition offer.