Nepenthes sanguinea is a quick growing Nepenthes with many color forms. The pitchers can vary from solid green, blood red, purple and anywhere in between. I believe Exotica Plants has several varieties with many different photos available. Some of the varieties produce very large pitchers as well. This is another good starter plant to try outdoors because of its hardiness, relatively low pricing, and common availability. Also this species seems to be able to take a great deal of sunlight. One of my smaller specimens went directly outdoors upon arrival with my other highlanders. It stressed a bit at first but then bounced back with good growth. The leaves developed that nice waxy coat that protects against humidity loss quickly.  Nepenthes sanguinea also produces some nice hybrids as well. One particular hybrid is N. X mastersiana which is a cross between N. khasiana and N. sanguinea. It's a beautiful plant. There's a nice photo of N. X mastersiana at Plants with Attitude (see Personal Home page link on my home page). I consider this species a good starter plant for the Nepenthes beginner to try in a multitude of different growing environments.

Cultivation: very easy; quick to moderate grower, good starter plant, large pitchers
Market availability: size 3, cuttings and larger plants; common (purple varieties less common)
Species variability: green, spotted, orange, red, purple and other locality names
$ / size: inexpensive to moderate; $15.00 and up for larger specimens; purple varieties most expensive
Cuttings: available at times for trade (spotted form)
Sex: unknown