I have used code 100 Atlas flex track in my current layout. My LHS sells it for $3.75 a piece. Hobby Lobby is selling 15 foot boxes for $11. Is the Model Power comparable in quality? both are NS. If not what id the difference. I have laid all the planed track, problem is that I keep changing the plan . If the Model Power is ay good I was going to pick up a box for those impromptu to changes.