This article from the FPA Journal (July 2005) which was quoted in a Bankrate.com article that was on Yahoo Finance today.
FPA article link:
The conclusion of the study is as follows:
"The inverse relationship between age and spending has serious implications for traditional retirement planning. To address these concerns, sophisticated strategies should be considered if accuracy is important. Reality retirement planning accommodates spending differences by deviating from normal retirement planning procedures. This advancement may hold the key to helping consumers realize more accurate projections on when they can retire and how much they need to fund this event. Any change that strays from the norm is typically met with skepticism and objection; however, it is change and only change that can advance a profession."
It is refreshing to see that maybe there is hope for this profession.
Also in the set of article was an intersting poll taken by Harris for Pulte Homes on Baby Boomer opinions on everything from SS to RE and of course housing preferences in various age groups. The poll has some interesting data which is not a big surprise to most folks in the ER crowd. (sorry about the long link)