My Chanter is in full 40e that took roughly 6 months to get due to work schedule and availability to be online and that's the only PvP set that she has. There are alternatives to making AP it all depends on the individual. Currently the Forts (Gelk and Ing) reward AP and Sapphire Medal reward dailies then there is the Crusader token daily that revolves around PvPing in either Gelk, SC, or Ingg. Those Crusader tokens can be traded in, 4 at a time, for a Crown Bag which has a chance from a Lesser to a Major Crown variety and has a possibility of being in multiples of 1-3 when opened. Also if you complete the 3 weekly Daemon quests you can trade those 6 Daemon tokens to the Shugo in SC for 6 Crusader tokens. The outposts in the Upper Abyss do offer a repeatable quest to kill 10 guards from the opposing factions Fort. Doing the C.Dredge repeatable quests 1-3x daily rewards AP. Doing and winning a Tiak rewards AP even if you should lose you do get some AP as compensation. If your faction owns an Abyss fort doing the Quest rewards over 1k AP when turned in.
On Average by doing a few of things mentioned a casual player can make 25k+ AP per week. Asking NcSoft to restrict people that already acquired a PvP set or two is stupid. The Daeva Pass is optional and not a requirement along with the Event Pass where you can trade those tokens for a Crown Box. If you are from EU then I can understand your frustration on missing out on live Fort sieges and Tiak. If you demand a free handout because you play alone and expect compensation then I can tell you that it's not going to happen and you are playing the game wrong. Build a static of close friends or Legion members, help each other by either spliting Fort instance AP between your group, run Dredgion together, run Tiak together, work together to do your PvP daily to start working on your stash of Crusader tokens.
As for the players that are selling accounts they have been building those geared accounts since Launch of Aion Classic and have their own tight nit groups to funnel AP. People buy those accounts because they don't want to put forth alot of effort on a fresh character. Some just want instant satisfaction than building/learning a Class. That's their prerogative. As for me I play my main at a steady pace with friends that I've been playing with since Retail 1.x-4.3