One issue I have with Xenoblade, and I guess a lot of RPGs in general, is the fact there is just way to much stuff to collect. When every single enemy you kill leaves behind a treasure chest, often with 5 separate items in each one, I think it devalues them. Put much less items there, but make them unique and worth finding. Also add interesting quests to make finding this stuff enjoyable. I think this would go a long way to making me actually WANT to find everything and go on my quests.