If you run the 1600 and the 800 in track should you get distance shoes or mid-distance shoes?

My school has an asphalt track and I use racing flats. They're as light as spikes but they are spikeless. I would recommend the Nike Mayfly. They're only 4 ounces but not very durable. The average "life span" of the shoe is 100km or 62 miles.