Scale Modeling Buyer's Guide, where did it go?

Hello all,

Recently I noticed my old Scale Modeling Buyer's Guide on my book shelf and I began to wonder what happened to that publication. I don't recal seeing anything past the third edition, which was printed back in 1992! Perhaps it was found to be too much effort for too little profit or perhaps there we some other business reasons for not producing newer versions. In my opinion, it was one of the best resourses for modelers and I would love to have an updated version availible. Maybe it could be a publication that only comes out every few years, but I would love to see this publication reintroduced. Anyone know what happened to it?

Thanks for your time! TTYL
Eric