The B44 is a very nice buggy. However, there are several other great 4wd's on the market, some of which use stick packs. Just keep in mind that electric 4wd's are often the most fragile class for racing. Partly because many places only run 4wd open mod and it's the fastest electric class and partly because of their design. The angle of the front suspension makes their front ends more prone to breaking.
Before you give up on the 2wd, you might want to make sure you're running the right tires for the track and try some setup changes like springs, shock oil, and possibly adding some weight to the car. Chris_RC is right on though in saying that the Bandit is usually not considered at the same level as Kyosho, Associated, and Losi when it comes to race performance. Learning to control a 2wd on a loose track will make you a better driver in the long run.