I know when I had my Rapidographs I loved them. I had a whole set. I used them for illustration and drafting. They were my go to pens in high school when I was taking Interior Design. I truly miss them. I was showing my DH a set of them yesterday and he couldn't stop oohing and aahing over them. Rapidographs I think were the most important artist tool for Illustrators before Photoshop.
InkinOne- Your work is amazing. I just took a peek at your blog.
Lindsay- I am looking into a nice refillable pen with changeable nibs. Same reason as you. Tired of going through my pens and needing to buy them again. I would rather have quality over quantity. I love things I can refill over disposable.