EX: You could be a god at making money. Have 500 billion Isk. But you have to wait a month or more for your training to complete on that fancy new ship you could build 5 of at the drop of a hat. So what do you do for that month? Make more money you can not really use? But then again I guess this is why everyone calls this game a 'Excel MMO'.
Making money still takes a good amount of effort, if you had 500 billion isk I don't think you'd have to worry about paying for the game monthly, you can just buy lots of PLEX (monthly sub sold in game for game currency)
When last I played it cost 300 million isk which would take me about a week to earn on average but it wasn't fun. That is a week of 4 hour sessions each day when a large part of that time is spent simply moving shit around and listing it for sale and then processing minerals. I'd push it off more and more each month and then I'd have to pump in long days of running missions to earn my 300 million isk in that last month and I kept asking myself, "Why the fuck am I doing this?" It stops being fun when all you are doing is paying to do meaningless shit... Make that part of the game free. Sort of like jail? You can't leave the station, maybe can't buy / sell anything either? Just train skills? If all you're doing is logging in to change skills that part of the game needs to be free. I'd enjoy paying for this game if I felt like I was only paying when I was actually playing the game.