Here is something you might want to consider regarding “burial.” Read this article a neighbor of mine wrote on “Natural Funerals” here in Nebraska:
http://nebraskaruralliving.com/blog/rural-living/790-2/ and a wiki article: https://en.wikipedia.org/wiki/Natural_burial
Natural funerals can greatly reduce burial costs because friends and/or family can do the work that you have to pay a funeral home to do.
For me, the huge amount of pollution created by traditional burial and cremation practices make a natural funderal the only way to go.