* Many functions need a `reference_price` keyword argument which is a bad smell * The get_book_for_symbol orderbook repo functions have to hack an inf/-inf price into None price orders to allow sorting * ~highest_bid and lowest_ask are also a hack~ * ~Market price asset freezes will eventually cause incorrect balances in user accounts~ (that whole system needs changing anyway) * Post-trade update_user uses the orders and not the trade, meaning its harder to update the balances for market orders
