When you say you're going back to 'the good old way', out of curiosity, what do you mean? 'Unobtrusive' JS and ajax here and there, but primarily server rendered templates? Or something else?
Overall, we've seen a substantial increase in speed, responsiveness, and most importantly our ability to maintain and extend the application.
I applaud this approach and would love to have an opportunity to one day work at a company that values reliable and sensible approach to building software instead of just following the latest fashion.
As Mikey Dickerson said; what we need is basic, well-known technology, applied correctly.