I continue to use Auction Profit Master where I know the market and am comfortable setting prices. Glyphs are fairly easy. I know my costs - which are similar by ink type, and I know what sells well and sells poorly.
However, I am currently using pure Auctioneer a lot more. There are two points I really care about market trends - when I am crafting items, and when I am selling them. When I am selling items at the AH, the Appraiser tab lets me see market trends easily.
At the moment, with the exception of glyphs, I am selling stuff using Auctioneer's apraiser tab.
- Refresh All (Alt + Refresh button)
- Look at items (edit) that are Yellow, Orange or Red in price, and post most of these. Sometimes I will Enable price matching. Sometimes I will even set a fixed price (with or without price matching). Other times I will do neither.
- Commodity items that are bought in bulk and sell (or not) regardless of the cheapeset buyout (mostly cloth and stone), I tend to sell for market price without price matching.
- Some seasonal items that are 'blue' in price will be added to my snatch list and I will buy out. (small eggs in particlular)