Sailplane Buyer's Guide?

I've often found myself wishing for a Sailplane Buyer's Guide (hey, I
can dream can't I?). It would compare manufactures, models, flapped
vs. non-flapped, comparitive polars, pilot satisfaction scores, flight
reviews, safety track record, etc., etc.

The closest resources I've found a
- Sailplane Directoery ( http://www.sailplanedirectory.com/ndxtype.htm#D
)
- manufacture's websites
- the occaisional Soaring magazine article

but nothing really comprehensive.

Anything I'm missing?

Eric