I think to use no decoration at all through a tune can get boring to listen to particularly if you have to play the tune for a long time
it is quite true, that what makes lift and danceabilty is in the case of a button box , bellows movement and finger attack,
   and with fiddlers the use of the bow., and lesser extent left hand ornaments, although there are one or two irish long bow or on the bow styles with left hand ornaments eg julia clifford denis murphy, that are still dancey.
I sometimes like to play 8 bars without decoration and then repeat it with decorations., this imo provides musical variety.
it is also my opinion that decoration should not interfere with the flow and danciness of the tune