its all relative boys, no one really cares. I personally wouldn't dream of spunking 5 grand on a brand new bike, but i would spend 5 grand building one from scratch. Madness I tells thee.
Back in the dark ages around '92 I bought a Raleigh Dynatech Quantum and it was over a grand which was a massive amount of money for a lad just out of college! Yet today a grand would buy you a stonker of a bike and would be lightyears ahead of the tech of that bike.
Of course there is fashion element as all walks of life, but as someone who has been riding bikes for over 30 years off road, a modern bike is a joy to ride but still no more fun than the bikes we rode as kids, because fun cannot be bought you create that yourselves.
So quit whining and just ride what you have and remember that solid gold feeling you got when you first rode a bike and hold onto it for life.