MUCH better? This is not true at all. The build quality is pretty much the same, and Prestige finishing to the frets is merely a luxury. In practice, you don't feel any difference. The 550 is a better guitar IMO because of the Edge trem. Edge Pro isn't as good. 550 looks better too. The lumpy paint on the 2570 is horrible. Pickups can be replaced easily when finances allow, and no guitar should be purchased based on pickups anyway.
Dear Dee, I can't compare every 550 and 2570 but with mine guitars, bouth of bought new,
first: neck on 550 feel like unfinished square piece of wood, until in my anger , and this could bee good tip, I take botom of pick and press it against top and botom edge of fretboard from first to last fret and smooth extremly sharp edge of fretboardand, after that neck was MUCH more comfortable, neck on 2570 is far more comfortable then neck on my 550 and feel much THINNER and faster.
My Edgepro has longer sustein then LoProEdge,and inonation is better on Edgepro, and the bigest difference is that 2570 has perfect tension, on 550 any finger band greater then 3 steps take strings to the point of brake, while on 2570 edge pro I can bend 5-6 steps easily, amd tension on fast or chordal playin is stil excellent.
With pickups: where V pickups are dying on me, 2570 dimarzzios still strongly sing, with fastpicked high notes there is greater definition, and when play with palm muting 2570 dimarzzios sending MUCH more melodyc content then V pickups.