Is a shaper what we brits call a spindle moulder? The advantages over a
router a fast accurate cutting of small and large profiles including
ones too big for a router, relatively quiet and dust free, continuous
operation possible with a power feed, very cheap cutters possible if
you make your own - (you can accurately copy any moulding at all), can
be used with a wobble saw tool which replaces dozens of router cutters
at a stroke. Utterly superior in every way except for being more
expensive and not portable.

Jacob