This is a recurring theme that gets discussed (sometimes with much vigor). I had the opportunity to rip some 8/4 beech this evening and wanted to add an example of the Freud LU87R010 24T, thin kerf. I paid about $25 on sale through Amazon awhile back. For lower powered saws like my 22124 it is an asset even at the usual $40.
The surface that the blade is sitting on was the cut: