Gap has some incredible loafers, all the reasonable prices between $40-$50:
Gap has them all sorts of colors, textures, and details. I'm loving the ones with the tassels and the basic tan ones. Target also has several pairs for under $25 that are worth looking at as well.
I don't think you need to throw out your round toe ballet flats just yet, but from the trends I've been seeing for this fall and next spring & summer, pointy toe shoes are making the best statements. So to get the most bang out of your fashion buck, invest in pointy toe flats.