I stuck with NOS because I can find them almost anywhere if I need another
chart while "on the road."

That was my motivation for switching, as well - I trained with Jepp's,
but they are expensive and inconvenient to buy for the occasional
longer trip. However, almost any FBO has local and often neighboring
NOS charts and they are cheap. With the new PDF distribution, its also
very easy to check an "expired" pack of remote charts against current
data, especially with the AOPA web site which now highlights any
changes. I only wish the same could be done for Canadian charts, the
government ones are fine, but almost impossible to get on short
notice.

My only gripe with instrument charts in general is the lack of
graphical charting of obstacle departure procedures, most of them are
still textual. I end up drawing those up every time before takeoff...

Martin