i guess one "use" could also be if the company was trying to list on another exchange as well and needed a higher share price as a requirement for listing? (or does that ony depend on market cap??)
also, with lower share prices there is a much higher percentage bid-offer spread like for a 20c cent stock it would be 19-21 while for $2 it would be 195-205..
and the company might find it easier to get more funding with a higher price?