Bitcoins are extremely divisible! i.e. 3.2345645645 BTC is a real figure that can exist! It depends on the total amount owed, but personally I'd probably prefer payment in BTC

Most of the trades below 1.0 will be far less interesting due to validation, it needs 0.1 (10%!) to get validated in a less-than-year time, for small transaction it's not interesting.
Even ripple which is meant to be able to easily do small trades, usually gateways will refuse trades which are too small, sadly.