My experience in chronological order. Magic: The Gathering, Middle Earth: The Wizards, Steve Jackson's Illuminati: New World Order, and some dabbling in like 5 or 6 others (Star Wars, and X-Files come to mind, but I couldn't find anyone to play with) (Colon's a re a necessary part of CCG's
I happen to disagree about luck in MTG, as my friends got heavily into tournament play, and at high levels, deck building is all about managing percentages. Yes you can get unlucky but the chances start to fade into insignificant when you've developed good deck building skills. I never got into it because of the stupid amount of money it took.
What I like about CCG's is the feeling of pulling off a good combo. You manage to marshal the right cards and plop them down in the right order and something magical happens. The combo is more than the sum of it's parts.
I could never get into CCCG's because they tried to emulate actual cards instead of using the computer to improve the interface. Cards are cards, they have a special feel that can't be translated to the screen. Then again, cards can't have animation on them or hyperlinks. I think that distilling the core CCG experience into a CCCG would require really cutting out a lot of the fat. I don't like virtual cards. That's just me.
BTW, when I played Illuminati, 4 of my friends and I ordered a full boxed set for each of us, so there was no collectible component. Everyone was on even footing and the more skillful deck design usually won (except when everyone teamed up on someone just to piss them off!). That game rocked.