My 2p on this is that I always go for the numbers unless the runway is uneven, such as at White Waltham where its a pretty lumpy around the numbers on one or two of the runways, or when I'm flying into a bigger airport (Oxford for example) and I land deliberately long because of the taxiway positioning.
At least 2/3rds of all my landings are on short farmstrips and the ability to not screw up those landings counts for something. Plus, giving oneself something to aim for leaves you with a sense of achievement if you nail it.
Which is nice.