that would be mostly 'cause F2P players cost the game money, while the game makes money with the P2P players..
if you're close to getting every skill to lvl 125 you could also start thinking about subbing, keeping your lvl's (or the pack) and then keep on growing =)
if you're close to getting every skill to lvl 125 you could also start thinking about subbing, keeping your lvl's (or the pack) and then keep on growing =)