I love lotus'.
They feel like they're going fast even when they're not going fast.
They can really make a simple drive come to life.
An elise and exige are very similar, and actually an elise track pack is lighter and has the same power, with essentially the same performance features.
However, the exige has an LSD option, and IF you decide to get the factory supercharged versions, the exige is intercooled and has a few more HP.
That said, you can pick up an aftermarket supercharger for an elise for around 7k, and it'll have more power than any factory supercharged elise/exige. (note : the new v6 exige is an exception...)
I would drive one every day.
But I'm not a princess... different strokes for different folks.