Laying down traps to cover entire paths will get very expensive, very fast, and you'll be lucky if you can do it by the time you reach the last wave of enemies for that level. (mashthosebuttons.com)
If you look at some of the most profound accomplishments in human history, many of them are based on faith: someone took a step towards their goal without being able to clearly see the entire path ahead of them. (inc.com)
Forgetting the crucial value of well - place content during the entire path - to purchase of buyers. (tonyzambito.com)