A 5-string adds a low B string below the E, which is handy for modern rock, metal, worship, R&B and reading keyboard parts. Under $1,000 there are lots of good choices, new and used.
The thing that separates a good 5-string from a mediocre one is usually the low B: it should sound clear and tight, not floppy. Longer-scale designs (35" instead of 34") and well-made necks help with that.























