Aaron, I should explain that we're a non-profit that developed a Collector map to survey the locations and removals of invasive non-native plants (NNP) in central AZ. Currently, dozens of people (mostly volunteers) record locations, species, number of plants, etc. in parks, preserves, and forests all over central AZ. We have many thousands of points and polys, all displayed on one map so we can see what been surveyed, what's been removed, where certain species are concentrated, etc.
We use tracking simply to understand what areas have been covered. In effect, if we see track points without any NNP observations we take that as "negative results", i.e., we assume that there were no NNP along that portion of the track. Since the observers almost always are following a trail or an obvious physical feature like a dry wash, there's no need to get frequent location points. We also had some trouble syncing in early use and didn't want users to have to sync 1000s of points/polys (most of which would be track points) at one time when they got back to a cell or wifi signal.
What we've developed has worked very well for more than a year now (our public map can be seen at http://msfi.maps.arcgis.com/home/webmap/viewer.html?webmap=6633090d53bb4d50bdbdb82ef7f27c47). Based on what you've said, I hope ESRI will continue to support Collector Classic for a long time to come.
Dan