I used to agree with SayWhen. Now, after having lost my parents, I certainly see the purpose of funerals as part of the greiving process. Maybe we don't need such hoopla to achieve the desired result, but some level of formality is requisite or I don't think the emotions would be as well purged. There is something that brings out the tears in a formal setting, when emotions are typically not appropriate. I just can't explain it. However, formality comes at a price.
As for burying bodies in pine boxes, rightly or wrongly, most juridistions require a concrete vault by law for health reasons. Query whether there is sound science behind this requirement but there it is. Hard to imagine what dangerous biological agent might remain post-embalming. But, don't get me started on the embalming. Gross and ridiculous. I've already placed my order for cremation - extra crispy!