It was a difficult decision for me to spend 1.300 EUR in a Brompton, but I don't regret it a little bit. I have to admit I didn't use any alternative as a long term foldable bicycle, but after 3 years with the Brompton I don't have a single complain. Great quality, minimum weight, nice riding, fast un/folding. Everything you would expect from a portable bike.

Regarding the cost, I'm quite sure I could sell mine for more than 800 EUR while any other alternative would lose at least 50% of the value and probably require more maintenance.