This question came up from a friend recently they wanted to know if Tera Online private servers are really worth playing. I asked where that even came up from and they mentioned about getting a invite in there email from some server claiming to be a private server. First of all I warned them not to use the same account information from Tera Online. One thing that many people don't realize is that many private servers open up in hopes of luring people from official servers so they can try and steal passwords of others.
Lets look at the pro's and con's of playing a private server first. Some of the pro's of playing one would be not having to pay for the game or pay monthly for it. I can see were this might be luring to others but the game costs like what 19 dollars now I mean I can understand if it was $60 dollars but 19? and it was even 9 dollars at one point during a promotional sale. Not only that but you can buy chrono scrolls with 30 day's of free play without paying for a subscription. Of course that was not possible when the game first came out and they used to force you to pay for a subscription which is no longer the case. Many of my friends on Tera Online have not been paying for a subscription since they bought the game they just farm gold in game to buy the scrolls every month. Honestly not paying is the only upside for a private server usually private servers will try to obtain money in another form such as a cash shop and allow you to buy gold or custom equipment with overpowered stats. And you could try to argue that Tera Online has a shop but it's only cosmetics and its not a pay to win shop at least not yet.
My friend tried to argue about how terrible enmass is when it comes to giving support and I have noticed some problems when trying to clear up problems or when the staff just knows nothing about the game. Its pretty much hit or miss whether you get a good staff person to help you or not. But with that you have to also consider most private servers are run buy billy that never coded in his life and thought it would be cool to run a private server off his moms computer. While that's not speaking about all private servers most don't come with a staff of trained people that know how to code or troubleshoot and while yes not every enmass GM knew what the hell he was doing the company still has done some major updates to fix things that ktera didn't have fixed either.
One of my friends runs a Ragnarok Online server called Existence Ragnarok Online and even he has commented on how horrible many of the server owners can be. They do nothing but ask people to do everything for them even down to coding simple NPC's and many ask how to make it work with a router because they are to cheap to buy server hosting and such. He basicly tells everyone if you plan on making a server do not think it's going to be a get rich quick because running a good server takes alot of time dedication and hours of work hes been working on servers for the past 9 years. I assure you he's far from rich.
Overall I would say if you want to play Tera Online just buy the game and if you can't pay for chrono scrolls go farm some lower level dungeons for items to sell and get the gold for chrono scrolls because the game is worth playing. Currently it's one of the better mmorpg's out of all the ones that came out recently if your looking for a good mmorpg experience Tera will be the right one for you.