The Tokyo metropolitan government has launched a jumokuso service for individuals. Jumokuso means "tree funeral." For a fee, a person can have his or her ashes buried at the foot of a tree planted in a special park in Kodaira. The financial advantage of this particular burial model is that the person pays only once. Most remains are interred in family graves located in graveyards that are managed by either local governments or religious entities. Graveyards require kanriryo (administration fees) in perpetuity.
In principle, a jumokuso customer will have his ashes mixed with other customers. It costs ¥134,000 for roughly cremated remains and ¥44,000 for remains that have already been reduced to ash (a more involved and thus more expensive process). Enough space for 10,700 people is being planned for the park, and the first group of 500 "plots" was recently sold via lottery. There were 8,169 applicants.
Obviously, many people are not attached to the traditional Japanese style of burial any more, and it probably has a lot to do with the traditional funerals that go with it, which can be extremely expensive. A recent Asahi Shimbun article described a woman in her 60s who was shocked when she received the bill for her husband's funeral. The funeral service company had quoted ¥1.7 million for the whole thing, but the invoice came to ¥2.6 million.