If I were you, I would buy an inkstone and an ink stick, because I think this is my personal feeling. Compared with ink, I prefer the atmosphere in which the ancients used their own inkstones and then happily wrote and painted.
Maybe it's because I've watched many TV dramas with ancient themes, and I've always wanted to write and draw in an ancient way. Of course, this only refers to your own leisure and entertainment. It is more convenient to buy ink when you are serious.
But ink also has several characteristics. If we use ink when writing or painting, the ink is too thick and dark, so sometimes it needs to be diluted with water before it can be used. I remember once using ink in the office, because it was the first time to use ink, and I didn't know it needed to be diluted with water, so I brought it over for use. Then the whole paper was finished and all the words began to faint.
And sometimes when you use ink, you don't know how much water you can use, so we will cycle indefinitely: water, ink, ink, ink, and we are always in the mode of water and ink.
There is no way to store inexhaustible ink, because if you leave it, it will have that unpleasant smell. Moreover, there are a lot of industrial and chemical raw materials in the ink, which will become more sticky and thicker after being left for a long time, and there is no way to use it again.
In fact, it is easy for us to see that celebrity calligraphy and painting are written in grinding ink, not in ink.
This is why some people are willing to spend a lot of money to buy ink stones and ink sticks.