As myself being just a simple Star Wars fan I bought the game full price and played the story arcs of two toons. Then I PVE'd HM FP's and occasionally joined some guilds to do the tier 2's. The daunting amount of time it takes to acquire some of the Black Hole gear like a main hand weapon was discouraging and then I discovered PVP.
Like you guys I only go back to PVE for credits. I use the credits to add augments to my WH gear.