I don't think I would have one grail pen.
I've got several I have my eye on for various reasons.
- Lamy 2000: Sounds like an all-round solid pen.
- Pilot E95S: Relatively cheap gold nib pen.
- Pilot Vanishing Point: I love the idea of a click-fountain-pen, plus I have the Majohn A1 and A2 so I already know I'm a fan.
Just to name a few.