The next step could be Montblanc ballpoint pens, but that's a very different level where it comes to money; the writing experience is far beyond that of most ballpoint pens at a sub-100-USD range.
Then there's fountain pens, which is a whole new ballpark... If that interests yourself, I recommend these brands: Platinum, LAMY, Pelikan, Sailor, Montblanc, Pilot, and Nakaya, in no particular order.
I must say, I tried rewatching the first season but stopped when police who visited a suspected rape just told the purported victim to shut up and do what a woman has to do, basically. Sketchy and beyond. A farce compared with 'The Wire'. Try 'The Corner' instead.