"urethane is one of the most durable finishes that one can apply but it tends to look like plastic"
i suppose that it has its place...perhaps wood floors, bar tops, or even dining tables, but while i didn't want to be the first one to say it, it often does look like plastic to me. that is a 'tastes and preferences' thing though, so everybody will have a different opinion.
"Here is a very informative article..."
just got through reading it. the bit about not sanding with too high of a grit as it may prevent absorption on some finishes was something that i never heard of. many good tips in there. thanks.