Away games are nearly always better because all of the fans are grouped together so singing and chanting are concentrated as opposed to home games where the same fans are more dispersed.
However, the argument for regionalised lower leagues is valid IMO for financial reasons. The more away fans that travel the better the finances for the club. From a financial point of view I would much rather see 800+ away fans at GP even if they hardly made a sound compared to 100 who sang all game.
I've looked up some stats from
http://www.tonykempster.co.uk
and
http://www.thefootballforum.net/forums/index.php?showtopic=121230
Our top 3 aways for league games so far have been;
Tues 12th Feb at Barnet - 1107. Distance 15 miles. Number represents 24.73% of our average home gate.
Tuesday 1st Jan at Dagenham - 913. Distance 24 miles. 20.93%
Sun. 9th Sept at Wycombe - 827. Distance 30 miles. 18.47%
Our smallest aways for Saturday league games so far have been;
Sat 15th Dec at Wrexham - 122. Distance 201 miles. 2.73%
Sat 3rd Nov at Bradford - 184. Distance 201 miles. 3.13%
Sat 20th Oct at Rochdale - approx. 250. 222 miles. 5.58%
IMO all clubs will have some fans who do travel to long distance aways but equally all clubs will have even more fans who will travel to the shorter distance aways.
Anyway once we are in the Championship we won't have to worry about regionalised away games. We'll be able to travel the length and breadth of the country.