I don't mean to flame but if you don't want to pay don't download the maps. I wouldn't.

But Pandora Tomorrow looks so good and I hear you only start with 2 maps online how long could the fun on 2 maps last.

theres multiple maps online.
those are just 2 extra maps for you to use.

eventually it will be free.
games like Counter Strike,Mech Assault,Star Wars:KOTOR and others all have free content download.

Yeah I was playing pandora tommorrow online and it had like 8 or more maps.

I cant decide which to buy next, Pandora Tomorrow or Ninja Gaiden.

both are awesome games.
Ninja Gaiden has some new downloadable content that adds an extra weapon,more enemies and new ninpo(i think).

SCPT is a pretty good online game.you just need to find a good group of people to play against and avoid the ranked games until you get better at it.

you cant really go wrong with either choice.maybe rent both and find which you like best and buy it.