Would it actually have killed them to give us some screenshots, given that it's to be released in only 3 weeks time?
$49 seems like quite a bit, but again ... it's not real money.
I pre-ordered it from RightStuf Anime in November for $32. Lord knows if that order is still in, because RightStuf lets you know jack through e-mail about pre-order delays.
Because it's probably not any or much different from the UK DVD transfer, just an NTSC conversion; there is no mention of remastering afterall. Other than that, "Star Fleet" is probably nothing to most people following Discotek's usual catalogue so there's probably little demand to hear about it from them. Then there's people who are just glad the show's finally getting a US release. "Star Fleet" is more likely to be loved by Gerry Anderson fans than today's anime fans, even if it was made by Go Nagai; the man the giant robot genre of anime owes a lot to.
I have a few Discotek DVD's myself, primarily some "Lupin III" movies. They have gone above and beyond on many of their stuff, prime example is Lupin's "Mystery of Mamo" which has 4 different English dubs done over a span of 25 years (one of which includes Captain Carter's voice actor as Goemon, and Orion's voice actor as Zenigata) and their DVD includes all of them. But as Enoki Films has pretty much shown they have a loose definition of "remastering" as shown by the 2013 Japanese set, I wouldn't expect miracles from the masters they give to Discotek.