Diablo 1 did not have skill points. Diablo 2 had EXTENSIVE RMT.
Did we not love and enjoy both of these games?
I'm personally looking forward to the ability to securely spend a couple bucks to grab an item I haven't been able to grab in thousands of baal runs.
The removal of traits, disappointing. Exclusively online play disappointing, I'm sure, for some people. But skillpoint removal and RMT support? Think back to D2. 99.9% of skillpoint builds went like this: 1 point in the onepointwonders, max main attack skill and its synergies. Maybe max a buff once those are done. Is that true character customization? Not at all. Not even close! Driving character customization by the skills you pick makes much more sense in a game where you are limited to 6 out of hundreds.
Another thing to keep in mind is that the game will be continuously evolving. In order for the market not to become extremely saturated Blizzard will at the very least need to be releasing new items on a regular basis. We still have hundreds of skills to choose from and the potential for an awesome revamped skill rune system. 2 planned expansions and many patches in between leaves plenty of opportunity for Blizzard to revise / revamp / redo things which they have repeatedly proven willing to do.
The best news of all is that the D3 team is clearly in crunch mode. I am going to be shocked if it's not out by the end of the year. Beta within a matter of weeks. Try it before you knock it.
In my 15 years of playing Blizzard games never once have they released anything that wasn't stellar. I am confident that D3 will not be an exception.