Here are some issues for beginners with Paphs.
They live in very low light less than Phals about 900 foot candles. This makes them very good for a home.
They do not like to get over heated. Since I grow outside in Florida, I have to keep a fan on them to keep them cool. Most homes have adequate temperatures.
Paphs like to stay moist and should not be allowed to dry completely for any length of time.
Sphagnum moss is a common growing medium but whatever you use it should be changed about every 9-12 months. They do not like souring medium.
They can be grow with even less fertilizer than most orchids. They get much nutrient from the medium and is one reason for the need to change medium regularly.
Their roots are different in that they have very fine hair roots coming off the side of the root. You will not notice them unless you look for them. This is the water and nutrient up-take. Paphs should be steady in their pot as movement will rip these roots and eventually kill the plant.
You should definitely start with a Maudie type (recognized by the mottled leaves and reasonable price). They are the easiest to grow.
The green and purple varieties are very common but as they are seed grown the colors will vary with some being lighter or more spotted than others. These two should be found most anywhere for less than $20.