Airfordable (YC S16) is layaway for plane tickets
themacro.com
themacro.com
"Chris Woods started looking for flights to Hawaii during his son’s senior year of high school. His son had joined the US Army and would be deploying right after graduation, which meant the only time the whole family could take this trip together was during spring break."
But the story on the front page of Airfordable's web site[1] has a very different spin: take a romantic vacation in Bali, Paris, etc. even if you can't scrape together the cash to pay for it up front. (If you can't scrape together the cash for a plane ticket, maybe you should save up a bit more before going on vacation so you can avoid paying extra fees? Or take a vacation somewhere that's cheaper to get to than Bali. And after you pay for that plane ticket, you still need to pay for lodging, food, etc.)
Also, I couldn't easily find information on their web site about what their fees are or how they compare with standard credit card interest rates. If they're really offering a good deal, it would be in their interest to prominently display on their web site how much you'd save by using their layaway service instead of a credit card.