So it's still very popular then - testament to Werner's and other's efforts to produce it and update it. It is, frankly, completely unmatched by anything else - everything is in it, from the history, regs, programme, cars, drivers, how to get there and back, where to stay and go, and what to do.
Way beyond my technical or practical know how, but as most people seem to have smartphones and/or tablets these days, might it be worth thinking about making it downloadable via purchase through an app, rather than free download and voluntary contribution?
MG Mark