Lastly, I feel I should point out how, if you are a singing entertainer, a uke brings you closer to your audience than any other instrument. Singing from behind a piano is very isolating - singing from behind a guitar is much, much less so. The audience gets more of you, and your singing becomes more the focus. A ukulele takes this relationship even further - there is almost nothing between you and the audience. Your singing becomes even more focal - and you have to work for that, because with so few notes, all being high notes, a ukulele gives you a bit less to fall back on. But if the singing is primary, and the accompaniment secondary, you can use all that to your advantage.