I agree with you. The only reason I got into the line was the tease of the enemy mecha and space issues. I love my valks but can't justify the space having the collection I wanted to have. I can fit double the amount of 1/100 in the same space as I can my 1/60's.
Not to mention having a Monster, destroids, and Zentraedi mecha in the same scale and quality.
I hope Bandai releases more but I understand the basics of the business. With the market how it is worldwide why invest the money on all new molds for 1/100 Macross stuff. They have the 1/48 and they can just repaint that multiple times and milk the mold.