Not to sound like a negative Nancy, but a band is only going to be as successful as its marketing.
A ‘serious’ band will have pages on MySpace, Facebook, and many of the other social networking sites on the web. They will use photobucket, flickr, many of the MP3 hosts to stream their music to all the social websites they can. They will also have places online in which to buy clothing and (autographed) CDs. These websites shouldn’t be viewed as competition for custom websites, but tools to promote the custom website. Imagin if all the users of MySpace, Facebook, Bebo, etc… had the band’s website link infront of them with each and every bulletin posted, wall message, and every other way the SN site allow users to mass communicate with others.
A band website helps to brand the band and its style. MySpace and others allow custom HTML in their pages, but it’s very limited. A website also allows for bands to post their history, a bio about each member, and other things which promotes a ‘personal’ connection between the user and the band. Maybe a section for their favorite cities or bars they like to play. A section for their fans to post pictures. A section where users can download and vote on new, original, music. A section for pricing, booking, and contact information. A section for their favorite gear, sponsors, influences, etc… Plus there could be a section for links to other local artists in which links are shared.
You could also collect information such as email addresses, names, birthdays, and a slew of other info that you could use for marketing purposes. Plus, if something happens and MySpace/Facebook/etc.. deletes the band’s account, there goes their online ‘following.’
Plus, let’s ask the usual question: Does their competition have a website?