This is an excellent answer to a simple yet seemingly very complex question (see post on can anybody really nail this tone). I think I'm totally on board with your advice. Just go digital as the technology is there now and in the long run much cheaper for those folks who have not yet built up a big (or multiple) ri(s).
One of the best answers I've read on a gear forum in a long time. I think the key to the tube/ preamp/ speaker signal chain is having space to have volume, and in many gigs it's just not possible to push our gear to what it's designed for. With an Axe FX/ 11r or POD this can be achieved easily.