USO, UNG, UGA etc. Heads up

In the midst of the "financial crisis" my wife and I planned a winter road trip to Canada (Banff), and being knowledgeable in the futures markets, I decided to hedge our insanely cheap gas prices (under $2/gal) and throw a couple hundred bucks (our anticipated cost of gas) in the UGA. This is an ETF designed to track the cost of gas.

My timing was good, and I still hold the investment........except, I have recently moved my taxes to a CPA instead of an online provider and found out that these investments are a LP (limited partnership) which add about $100 to the cost of doing the return.

Basically just wanted to throw this out to the community to consider the additional costs of an investment. My 400% return isn't so attractive anymore.