Maybe he just likes the Eaglet. I know I do. Maybe his flying space/runway length is limited. Maybe him or his boy is a little scared of a larger plane. Sometimes big, noisy planes, even trainers, can be a little intimidating. The Eaglet will be a fun, easy to build/fly project they'll both get a lot of enjoyment from.

Dr.1

PS A .15 spinning an 8-3 at 18 grand is NOT the engine combo you want on this trainer. It ain't flying combat.