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.
Actually, some of the smaller twin-turboprop puddle-jumpers are still pretty interesting to look at -- just for example, the Piaggio Avanti and the Beech Starship (both pretty hard to find, but well worth looking for).