All SD cameras are not equal, like all HD cameras are not equal. When I was working in television, I shot with a $65,000 SD digi betacam, which gave better pictures than a
consumer SD camcorder from Walmart. You can now buy a $35,000 Beta-SP betacam
for about $1500....or a more affordable Sony PD-150 for about $350 (with all the bells
and whistles). I still shoot in SD (With a PD-150) and my only problem is that film festivals
are slowly getting more picky about what formats they will accept. But so far
CreateSpace/Amazon doesn't care WHAT the format is, so I continue to distribute
my SD stuff through them. Yes, I will upgrade to HD when my camera finally
craps-out, BUT that will mean that I will also have to upgrade my editing software (including
my "film look" software, "Moving Picture" software for animation), a bigger computer,
better DVD duplication equipment, and probably some things that I haven't thought of
yet. So switching will be expensive. BUT, the day will come to switch to HD.