There are many ways to optimize for conversions, so there is no need to stick to one strategy and call it the best method. This is due to the fact that both good conversion optimization methods and bad conversion optimization methods work and can be combined into different strategies.
The most important thing when combining strategies is to find a formula that works for you. It is not possible to suggest one formula that works for all businesses and conversions because every business has a different conversion rate, budget, and need.
So, if you want more conversions or have a lower budget than someone else does then by all means use the low cost of entry method! This means that you just start doing something rather than having someone do something for you.
It also does not matter whether or not this entry level way of doing things turns out good or not because each person has their own way of thinking and analyzing data.