Reply to MP3 vs WAV.... Seriously?!

Hey everyone,

After a week of looking into this debate that seems to never end, I don't know what to do! WAV, or 320kbps MP3?

Of course WAV is better than 320 kbps mp3, but is the difference worth getting so worked up about?

I mean I'd love to have all WAV but there seems so many problems:
Metadata sucks, and for me that's terrible.
There stupidly expensive.
You can't find all songs WAV.
They take up a huge amount of space.

But then I don't want to purchase a load of 320 kpbs mp3's only to have to rebuy them all in a year because I need wavs...It's hard enough having to deal with the fact of purchasing a 'virtual' song and not getting a physical copy to do what I want with...

So guys, I'm not after a massive techy debate, just down to earth does it realllly matter at home/clubs/venues?

Thanks a lot everyone
P