I also came to same conclusion (level to 60). Its a shame that there isn't a simple guide to LIs that covers the strategy of LI progression rather than pages of endless details (important details, but endless).
I posted another post in this forum a few days ago where I was trying to get confirmation for the strategy of other aspects of LI progression.
Maybe someone better and writing guides could put together an "Idiots Guide to LIs." The current guides are very good but they never really covered things like what level to deconstruct at etc. The person who wrote the Wildermore guide did a great job of organizing the information. Something like that would be great. A first post with an overview and then other posts for details, such as one per class to cover which legacies are a must and which ones are useless etc. (Of course lots of people will argue of the details, but for a new player a set of advice is so helpful)
“It will never work, change always makes things worse, and Turbine doesn’t care about us anyway….” Eeyore
“But maybe it will have honey or even something better!!” -- Pooh