My [2c]:
Most model makers tend to approach the market from the approach that if they are unsure whether a release will be popular, they tend to minimize their losses by going with the smallest scale first, usually 1/72, but there are some 144th scalers out there.
Then if the subject takes off, and there is a demand for a larger scale kit, then they will do that.
Hence the graduation from 1/72nd to 1/48th to 1/32nd for some subjects, such as the P-47 Jug and the P-51Mustang.
As for myself, it entirely depends on the subject.
Frankly, I do not care for all my ceiling or shelf space being taken by a single giant bomber, so I prefer 1/72 or smaller for larger airctaft.
Anyone remember the old Monogram 1/48th B-52? Unlike their B-17, a giant flop.
Once I saw the built finished model as a kid, I realized that by the time I got done finishing one end, I would have to go back and do repair work to the rest of the airframe for damage that occured to it during the build time alone.
On the other hand, for meduim sized bombers to large single-engined fighters, I prefer 1/48th.
For the smallish WWI biplane fighters, as well as others such as the Boeing P-26, Grumman F3F, etc., I prefer the 1/32nd scale, since I can actually see the finished product with out a magnifier. I would like to see a 1/32nd SBC-3 (or -4’s) for instance, since it was significantly smaller then the SB2C’s
I still prefer the 1/72nd scale for the huge-winged WWI Gotha bombers vs. the old Aurora 1/48th.
So, there again, it basically depends on the subject and personal taste.
Tom [C):-)]