This has been a very interesting thread, all in all. I've noted some very clear themes:
We all appear to agree that the pipe organ is the ideal instrument; that a fine pipe installation is practically without compare and many (most) feel that, if a church has a good and/or historic instrument (alas, not in Upton!) it should do absolutely all it can to maintain (and restore) it: we have an obligation to the future.
Some believe that any pipe organ is better than any digital organ. Others feel that there are times when a digital organ is the better and more pragmatic answer and that a well-executed digital installation can be a successful one. I'm more persuaded by this latter argument than I have been in the past.
I've also picked up that:
if you wouldn't install a 4-manual pipe organ of 60 stops in your church, you shouldn't install a digital organ of that size;
a digital organ might be cheaper than a pipe organ but a good one is not cheap and you have to look at value over the years. You can't skimp!;
almost as important as a digital organ itself, is the sound system that comes with it: although speakers are still likely to be the weakest link in comparing a digital organ to a pipe organ, a properly-designed and installed sound system will have a significant impact on the perception of a digital organ.
Finally, the important reminder to myself: unless it's in my home, the organ is not there for my benefit: it's there for the church. And so am I.