We are using a 32 channel VLZ Mackie at our theater that has been there for as long as I have. I've been told its been around for about 10 years. It has never been maintained, has been treated poorly, has had all manners of food and beverages probably spilled on it. We have multipe dirty pots, channels that flat wont work, missing knobs and faders, and who knows what else. All I know to do is blow it out with compressed air. My question/s is/are this: is there more maintenance I can do to this? Should it be sent off? I am of the opinion that this board has served its time and we should get a new one. The theater spends money on all sorts of other things, but keeps putting off getting a new board even though they've been talking about it for years. Am I unreasonable to keep asking for a new one?