Briefcase with a simple model can give the impression of elegant style. If the color, I like the black bag. The black color can be combined with the work clothes that dominant with dark colors.
To buy a briefcase should not be in the supermarket, if you find the appropriate mode, buy a bag in a traditional market is also not a problem. Price does not have to be expensive briefcase, the high price is not necessarily able to meet expenses related to work.
If a low price can have a nice briefcase, It's was a wise choice. Due to the preferred briefcase is its usefulness, it is better adapted to the purpose. So I think a simple briefcase bought at cheap prices is the best choice.