Vampires are the most common variety of immortal being one comes across in fiction, but there have been others. Extremely long life can verge on immortality, as with classic-style elves. In science fiction, immortality can come by way of downloading minds into vat-grown replacement bodies.
Immortality brings some unusual factors into play, some of which have been addressed well and extensively in novels. The importance of long-term relationships -- and how they can sour -- in Anne Rice's vampire novels, for example. Grudges that go on for centuries. The loss of humanity (and questioning what humanity is) and the scarring effect of doing monstrous things to survive. Good stuff, all of it, as the popularity of vampires attests.
But there are some recurring facets of immortals that I question, too.
So you spread out your assets, goes the logic. You invest in commodities like gold and jewels and hope you can hide them well enough that they'll still be there when you need them. (Really? Your staff is that trustworthy?) Invest in a widely varied portfolio and hope something pans out somewhere. One of these companies will be the next Microsoft, right? And it won't crash like Enron, of course.
I'd love to read a story about a 700-year-old vampire who's poor. In fact I'm claiming that idea, I may need to write that myself. Can you imagine working shit jobs for hundreds of years?
They're out of the gene pool
Balancing long life with a low reproductive rate is reasonable for world-building purposes. However, it does leave out some interesting possibilities. I had a chance to think about them in the course of my current fantasy monstrosity.
If one's immortality is acquired, not inherent, then one could still have a "normal" family with one major difference: you're going to outlive them all. Not just your spouse but your children too. And your grandchildren.
How long do you remain involved in their lives? What's your role? Can you afford to be emotionally invested?
This was touched on a little in Highlander, except that the immortals couldn't have children. If anyone knows of other stories that addressed this, please mention them in comments.
They have "refined tastes"
Or are they just jaded due to having seen it all, done it all, and there's only so many ways you can do a thing anyway. It doesn't matter if the thing in question is sex, murder, cuisine or high fashion. Novelty is a dead end, on the grand scale of things.
Just some thoughts. What aspect of vampires sticks in your craw? (aside from the sparkly part, LOL)
This is a topic that will come up in a character conversation later in the A-to-Z run. I'll link to it here afterwards.