@trackmbe3
I disagree.   You gave an example of WHEN, not WHY, merit might be better for a given family.
Families who qualify for needs based aid, which is sufficient to make a desired school more affordable, or at least as affordable, as other schools with merit aid, will know if their family situation will change during the 4 years.   @CourtneyThurston could reasonably expect that her mom’s income would increase materially after her high school graduation.  Most families would not expect something like that.
Generally, for the oldest child, the needs based aid will not change, unless perhaps there is a younger sibling who will graduate from high school and not go to college, not stay a dependent, or go to college, in which case the aid for the older child usually increases.
Needs based aid is better for most families.   Most families are easily able to predict what their demographics and family income will be over the next few years.  Most families need more aid than they would qualify for in merit aid.
Schools that have a reputation for being generous with needs based aid do not generally want to risk harming their reputation by being stingy in later years, playing games like bait and switch.   By calling the schools FA dept, and explaining to them in general terms about your family situation - you can do this anonymously if you like - you can (and should) get a reasonable estimate of the 4 year cost for your child.    Run the NPC with a family of 5, and then with a family of 4, etc.   Or run it with a family of 5, with one in college, then with a family of 5, and 2 in college.
Needs based aid can be better for many families, especially when the aid becomes significantly more than merit - which rarely covers close to full COA.  And not just because the child does not have to meet the minimum GPA.
Merit aid that covers half-tuition or even full tuition is not better than needs based aid that covers full COA, or needs based aid that covers tuition, fees, and a significant portion of room/board.    My pups turned down full tuition merit aid at Flagship State because we could easily tell our need based aid would mean they would qualify for a portion of their room/board to be covered.
A family can estimate the needs based aid by running the NPC’s.    Often, merit aid is unknown at the time of application, and much more competitive.  Needy families who apply to schools, seeking merit aid that ends up being insufficient, have wasted an application fee, and perhaps needlessly gotten their hopes up.
Because all schools that can offer it have a responsibility to be sure they are offering their need based aid fairly, they all want to be sure they review each student’s aid every year.
Here in the world of CC - which clearly skews toward families with much higher net household income/assets, it seems many more families find merit aid much more practical.  There seem to be far more full-pay eligible families here (and I do not mean to begrudge them for chasing merit - it only makes sense for them) than needs-aid eligible families…
There are without a doubt some families where the 4 year COA after merit aid approaches the projected COA after needs based aid, after considering anticipated changes due to the demographics, etc.   Some of these families might find they do better with needs based aid for the oldest child, and merit aid for the youngest.