Everybody has access to information these days video replays, trial videos, sectional times so it is much easier for punters to spot previous good runs, unlucky horses hence the dividends are shorter and horses you perceived to be at good value are now spotted by everybody and are not. Add to that the TAB will almost certainly have inside information from industry participants to further decrease your value and the end result is a frustrated Brodie posting 10 times a day how the odds are so shite.