A 200 period moving average on a daily chart represents the average price for the last year running. Quite a lot of market participants are looking at it and thus it is good to be aware of it
A 200 period moving average on a 1, 5, 30, 60 minute chart will all have different values and unless it is your personal line in the sand that you have found to have a statistical edge for trading with a specific risk:reward - stop: profit ratio it is just an arbitrary data point.
VWAP on any period intraday chart will give you basically the same constant value. Most hedge funds and pension plan trades are incorporating it in their stock purchase program decision making. For a day trader it is good to be aware of it. Follow the money.