then the question should be '' do we want better effects? ''
lets face it. studios know that they can get away with bad effects. so they dont invest a lot of money. not enough money.
so should we complain IF there should be cgi or IF they should use better cgi? i think they should give them more money and more time.
I think it also depends on the type of film/its setting and the scale of the task at hand. Granted CGI has improved a lot over the last decade it is true that it comes down to time and money. Dragonball, a movie that should have called for good CGI, fell completely flat due to little time/money invested in it (I blame FOX for that).
Movies like Star Trak/ Star Wars MUST have good CGI, it comes with the territory. In my mind its mostly the fantasy/comic book films that need it or rather use it the most, and they have a necessty for it. Action films need to blend both CGI and live action.
One thing that annoys me is when good films have bad CGI; it sort of ruins it/takes me out of the experience (Titanic was one of the first films I noticed this on, granted I didn't care for the plot/characters, but the CGI was terrible). Spider-Man 3 was another example; an ok film, but you can tell they focused on some things more than others. The symbiote CGI was good, yet they re-used CGI from the first two films during some swinging sequences that were outdated and looked awful, which was just lazy and with the amount of success/revenue the films generated, uncalled for.
Transformers CGI has improved for RoTF, but one thing that makes 3D look better is making more things "shiny", so mistakes are more unnoticable. I'd say the biggest mistake with CGI nowadays is poor mapping and unnatural motions that give it away. But again it really comes down to time, because you need to test render to see if everything is working/rendering properly; and if it isn't, you need to go back and tweak again and again, which ultimately leads to more $ spent.