Oh, don't get me wrong, as Spike said on Buffy, "You're not clear on the concept, pal. There is no 'instead.' Just 'first' and 'second.'"
But you know, I set my gaming budget to be $30 for the month, and anything else is going to wait until I go up to FFG for Days of Ice & Fire.
So what would be the more efficient addition for my imperial forces that currently have 5 TIEs and an x1 to build from?