With Alpha/String way... customer support is top notch, best in industry. Pretty much any of those machines will last a long time but that the Neos has been around much longer so it has been proven to last a long time.
You might never have to replace parts unless you string 5k racquets which you might eventually ahve to replace the clamps
Volkl C10 Pro w/ Fairway Leather Grip
Babolat Star 3
Innocent! 6 13 45