I'm from Los Angeles and it's okay. It's not Miami and not New York, or San Francisco for that matter. And certainly not like Las Vegas. But I went to Ibiza for the FIRST TIME IN MY LIFE AND LOVED IT!!!
Now, I went to the WMC this past march and loved it too. Yeah it's an industry thing, but if you don't get caught up in that you can catch some really cool parties. I went to the subliminal party for example and it only cost $25. There were some other cool parties going on during the day at hotels that were free!! We went to a great party at Nikki Beach that had Lisa Shaw singing live and other great DJ's from 2pm-2am...AND IT WAS FREE!!! Yes you'll pay up to $40 for a party, but you can buy tix in advance for $25-$30. And there are plenty of free pool parties going on during the day. Some parties cost $15-$20 as well. We saw MAW dj and perform with a live band for $25!! And this started at 4pm. I know many people on this board have commented they didn't like it, but if you're from the UK I would recommend it. At least once! I'm going back next year and for sure Ibiza as well!!! Just my thoughts. I think Ibiza is more expensive, although better, but you won't pay 13 euro($15) in a club. A red bull/vodka is going to cost you around $6-$8 in Miami.
Trust me it's cool and fun. It's all what you make of it. Especially if you have never been.