As for cheap I dont disagree, and for kits instead of self fabrication, well for those wanting kits yes, easier in that regard.
LT1/T56 combo can be had for $1500 if your lucky, $2000 is about the most I'd pay, but many yards want $2500-$3000, with LS1/T56 setups averaging $500-$1000 more than the LT1 setups, plus more expensive PCM editing, the O2 sim ordeal, all those little things add up!
I recall reading someone who said that the LS1 mounts dropped right onto the Datsun Xmember, and at that moment I just thought, wow, lucky dog. But I'll probably go LT1 for the above reasons, if and when I get to do the swap, although the Ford 5.0 is still in the back of my head.