Ptero wrote on 05/23/06 at 10:04:59:
But this is not the reason I play 1.d4 - It's that every time I think great! lets start playing 1.e4! I just look at the mountain of theory waiting there (Indeed if one wants to play the main lines and not the second rate ones) and the prospects of getting my a** kicked severely before I start getting hang of the lines - and I just give up my 1.e4 toughts right away
Well, one shouldn't forget that chess is a game played between humans. So it's really not necessary 'to prepare against Kasparov' when playing an ordinary Open or Berger. Even if you don't know everything after 1.e4, the chance is pretty good that neither does your opponent!
Besides, there are plenty of alternatives to the main lines after both 1.d4 and 1.e4 and sometimes by following the main line, you restrict yourself as well as your opponent. If there is one line your opponent is likely to know, then it is the main line...
For example, in his great book
The Road to Chess Improvement, Yermolinsky gives a few examples of his bread and butter variation in the QG. By simply inserting an early h3 in the exchange variation he reduces what he must know into a choice between 4 basic plans which will all have pros and cons depending on black's reply. Top GM Jussupov manages to draw, but lesser players tend to allow an improved version of one of the 4 plans.
So basically, main mainlines are to be used between top GMs at Linares and Wijk. Otherwise, the highest rated (or the one most keen to win) is usually the first to divert...