I've been thinking about house music pretty much non-stop for around 8/9 years - ever since I picked up my first Defected compilation actually and its amazing what this music has achieved in just 30 years.
First of all its still going strong - that in itself is a testiment - many genres have fallen along the way out of popularity but house seems to be growing if anything which is great.
Secondly it has pretty much expanded the festival scene around the world - yes yes theres Glastonbury, Leeds and Reading for the guitar fans but there are countless more dance music festivals.
Thirdly - how many other types of music pretty much take over entire islands and cities during the summer? You know where I'm talking about...
Fourthly - how many other types of music have been totally embraced around the world from Australia to Fiji to Norway?
Fifthly - how many other types of music have large scale conferences to actively talk about the state of the scene and to discuss where it goes in the future?
Sixthly - what is the type of music that all the so called ex-hip hoppers are producing now?
Sure there may be a crash coming soon when indie comes back but house music has stamped its legacy around the world.
So why is it so popular? Well I can only give my personal feelings - I think it is because it is fun - it doesn't pretend to be anything but itself, theres no pretentious feelings, no self pity, no depression, (almost) no violence and theres a genre to suit most people... House music exists for it to have a great time and so it does... LONG MAY THAT CONTINUE!