Thinking of making a wizard

[Estu]

Sure, sustained and burst DPS are two different kinds of DPS. One (burst) is most important for raids while one (sustained) is most important for EXP groups. If you're an EXP group and you're choosing between those two, you can bet that the sustained DPS will give you more EXP per hour. People make a big deal about taking down casters quickly but there are an enormous number of abilities and spells that allow many different classes to interrupt casts.