"What can you say the greatest advantage over someone in my situation would be?" I can't speak directly for pgbovine, but I had a similar experience as in his

"What can you say the greatest advantage over someone in my situation would be?" I can't speak directly for pgbovine, but I had a similar experience as in his book (finished fall 2011). I also can't compare to your situation since I don't know you. But I share pgbovine's sentiment: The PhD wasn't necessarily fun, but it was personally fulfilling. It also left me with a deep sense of accomplishment and appreciation for "just how far the rabbit hole goes." I often describe research as: 80% banging head against a wall, 10% cursing, 10% progress. Some of my recent work is more akin to "engineering consulting." I've found this job to be vastly different from research -- implementing solutions that are mostly-known rather than exploring uncharted territory. It's probably closer to 30% banging head on a wall and 70% progress, without any cursing (and saner hours with better pay). YMMV.