In addition to the rule changes, I found that the ball would get "chewed" up from my older Vokey wedges. Sure I was able to spin the heck out of them, but the cost of replacing balls so often during the round was getting frustrating. The new CC groves are certainly something you will need to adjust to, but in the long run, I am getting many rounds out of a ball opposed to 5 or 6 holes.
The cost of the new wedges are certianly worth it in my opinion and as 19th hole mentions, you may enjoy the round a bit more if you play it forward. Your preference, but best of luck either way.