I think skinnies are on the wane really (confirmed by this weeks Grazia!) so good idea not to invest a significant sum in those. Straight cut which hits at the ankle could be a better long term bet and looks classic. You could wear with ankle boots ir simply fold the back over to stuff into longer boots. You could try a boyfriend cut too although they are less adaptable to long boots. If you could get to selfridges they have some thing which matches you to the best jeans for your shape/size etc and would have things in that price range.