Should I sell or invest more money in this broken pen?

My Platinum 3776 Shape of a heart Chai Latte developed a crack in the grip overnight. While it doesn't leak, because luckily only the outer collar has a crack, it makes me sad and I don't want to use the pen like this. I paid 300€ and only had the pen for two months.

My options are:

1. I could sell the pen, hoping to at least get 200-210€ for it, original packaging, converter and ink included (obviously the crack will be disclosed)

2. I could buy a nib housing that will allow me to use that rosegold nib in my new Leonardo MZG 2.0 Sakura that also has rosegold trim. This will cost me around 80€ due to international shipping and tax.

I need your advice whether I should invest that money or just get rid of the pen for good