About the cash it's not that expencive to just go to the convention the consert is a different story. But the convention is only $25 for 3 DAYS that's great and you have so much fun. there is a lower though if you just want to go for one day it's only $10 but i would recomend going for all 3 days becuase it's really fun. With the convention there is many activities that you can do there is also lots of little stands where you can buy merch such as albums,posters, lightsticks,shirts,bags,bracelets and neckalaces. There is also stands where you can play games and Youtubers go there and have stands where they do Q&A's and after they are done with the time they have with that stand they take pictures with you and that cost nothing at all. At the convention there is also food trucks outside of the center and they have a whole bunch of food from Korean food,Mexican food,and Burgers if your not feeling korean food.
On the other hand the concerts are more expencive and when i say expencive i mean expencive they can range from $72.50 to the most expencive on which is the platinum which is $828.00 for just one day. All the prices are Platinum-$828.00 P1-$465.80 P2-$331.20 P3-$217.50 P4-$144.90 and P5-%72.50. But the concerts are really fun and if you do buy the really expencive tickets then you will have an even greater time because you will be closer to the person you admire. It also gives you a chance to meet new people and make new friends who have common interest to you. It's a very nice experience for sure.