What's all the fuss over Fisher Space Pens? Why do people love them / use them so much? The negative reviews on Amazon are pretty negative --- blobbing, cap problems, rolling away (bullets), clip issues (again, bullet). I'm currently using a sharpie stainless pen but I'm interested either in a clicky, or the bullet since everyone makes it sound like a must have. Looking for viewpoints on what makes the fisher pen great, why people love them, hate them, and / or recommend them.