There are different types of lava lamps to choose from. However, two of the most common types are blob and glitter. Each has its pros and cons.
A blob tall lava lamp is the classic version. It's the type that comes with what appears to be a thick liquid blob. The great thing about this type is that it can easily be recognized. Everyone knows about this type as it's a classic. The downside, however, is it takes a bit of time for the blob to heat up. This means that the lamp will take a bit of time before it does its thing.
The glitter type is the newer one. It's the type that comes with glitters instead of the classic thick blob. Generally, it's less expensive than the classic liquid blob. Also, it's a lot faster in heating up, which means it will start moving more quickly than the classic. On the downside, some don't like it as it's more of a children's decoration than the sexy lava lamp that we all know.