While many features among these three options are similar, there are a few areas where the 2950 provides a better user experience. For starters, it has a 4.25 HP motor where the 2450 is 4.0 HP and the 1750 only 3.75 HP. You also get to enjoy a larger screen the higher up the echelon you get. Of course, you get what you pay for, so, as you make your way up from 1750 to 2950, the price also increases.