First off, I do agree that the two Stargate shows are the best sci-fi in production right now.
However, I'd like to point out that the producers of BSG are going for a totally different look to their show. They wanted a more gritty feel to it. The lack of small high-tech details makes the show more accessible to a wider audience. There also was a reason given in-show about the lack of high-tech but it was implied rather than stated. These people had already fought a war with the Cylons, their own high-tech creations, so a society-wide disillusionment with high-tech would be natural.