Is it just me then?
I have a good mountain bike from the 90's and still wouldn't dream of replacing it (although a heavy re-vamp wouldn't go amiss)
I bought a good hybrid 2 years ago and can't see wanting to replace it unless it breaks badly.
I bought a decent(£900) Ali road bike in summer 2011 and can't imagine wanting or needing anything 'better'.
I could easily (apart from Mrs Skol's objections) spend £2k+ on a bike but even though I have an occasional look I don't get any urges to do so. Bike lust doesn't have to be an all consuming passion!