Some NM's that drop non-sellable items would be fun.. I dare even mention HNM's for gear would be fun too, but camp-a-thons and player lock out due to ilvl/status could be discouraging if you don't hang out with the 'right people'... But I never knew anyone in FFXI to walk by a random NM, high or low level, and not kill it just for the sake of getting it because it was fun.