I don't think there is anything wrong with rehashing old questions, true a search would reveal some of the discussions, but there are many new members that share different opinions on different topics.
I would venture to guess that there aren't many topics that have not been discussed at one time or another on this board. IMHO rehashing old topics with fresh new opinions is always a good thing.

A computer once beat me at chess, but it was no match for me at kick boxing.