Just to add to Frosty's comments:
- yes, you are given 1 free respec for your class and subclass AA trees (not the TSO tree atm)
- also there are free playing cards which you can get off the respec npcs - there are 2 cards, one for class other subclass - each card gives 5 respecs
- you can also get a respec mirror (end game) which I recommend if you want to swap between raiding and grinding specs often
- the respec npcs also have class/subclass respecs which they sell - they start at a few sp/gps for the first, then keep increasing in price the more you keep respeccing (increase all the way to major pps). The prices are reset once per month???? (going totally from memory - so correct me if mistaken) - so if you don't use it they go back to being respecs for a few sp

So, to answer you question, yes, it's not like EQ1, EQ2 has plenty of respecs