tibbets: Sure, however the Tour Starter set has .5 out of 5 less forgiveness and a .5 out of 5 faster meter for nearly 1/5th the price.
OK, there's also the (slightly) increased distance, and especially the spin. I find that the ability to spin the ball right makes a huge difference; otherwise my approach shots tend to fly all over the greens and beyond.
I played many rounds with the Tour Starter irons, and now also with the Rapture irons, and I find the difference between the two is huge. Seems to justify the difference in price.
tibbets: Why would a Hack+ set cost nearly 30% more than the Pro+ sets?
Perhaps because it is especially suited for a casual player like myself? It allows even players with less than magnificent skills to shoot great scores; what they lack in skill, they must pay for with credits. Master players for whom great precision of every shot is crucial, and not just reaching & staying on the green, would perhaps tend to be disappointed with these clubs, like you are.