Complex sentence: A $30,000 item can be won for pennies this way, however, the true price may be more than a penny as the auction site may charge a fee for the right to bid, or a fee per bid.
Split into simpler sentences: A $30,000 item can be won for pennies this way. However, the true price may be more than a penny as the auction site may charge a fee for the right to bid, or a fee per bid.