I'm not a spotter but I've had an interest in flying and aviation since I was a child. The thing now is - most aircraft that you can see at major airports look the same - so it doesn't interest me much unless there is a 'plane in some sort for fancy paint job or a new airline I'm not familiar with. Military aircraft look similar too. I think the two greatest periods for the diverse types of aircraft were the 30's and 50'/ 60's when designers were discovering and experimenting with aerodynamics and new engine types and new demands.
Things may be more efficient now, safer, reliable - but christ they look boring.