Title says it all, for the most part. I understand that these type of essays are meant to be specific to a single college, but to what extent can one be able to recycle this essay for multiple colleges (and maybe tweak it a bit here and there) and still make it effective for each college?
A good Why ___ Essay can never be reused. If it can, it’s not a good one.
Admissions readers want to know in those essays why you have a high level of interest in that specific college, as opposed to characteristics that are shared by several other colleges. So any recyclable essay of this type is not a good essay of this type.