Dude you are silly, for real.
Setting up a L2j server is 300x way easier.
The 'only power' of L2j is the community which is big.
If you know Teh Gud Forums then it's easy to do thing in your servers.
When a security hole is discovered in your L2off server, trust me IT'S munch more difficult to fix than L2j.
Why ?
L2j you just have to download the lastest files from SVN.
In L2off you have to code it yourself or leech the fix somewhere.
But trust me, on L2off if you only leech, your server will go down really really FAST.
I don't want to flame, just telling the truth.
Nothing negative against Thread's Author.. My best wishs for ekoice.
cheers