Someone told me years ago you can learn to fly in 20 hours and spend the rest of your life learning to land. Each landing is different and a learning experience. One could argue that the best benefit of 1500 hours is you're seeing a lot more varying conditions during that last 100 feet. You just can't duplicate that in 250 hours. I'll use wind shear as an example. May not happen often but when it does it can catch you off guard and there's the rub. Even with convective activity within say 20 miles you can see a nice 10 knot wind down the centerline suddenly gust to a 15-20 knot crosswind in the flare. On a side note, there are examples of runway excursions where the listed conditions were relatively benign. Trouble is that could be from an ATIS measuring conditions a mile away. My 0.02.