By looking at the last S&P issue and at the new Judge Dredd game (drokk!), it seems that Mongoose wants to reach a higher level of print quality, with a more modern look.
I think it's probably necessary today. If your book looks bad or cheap, you'll probably have a hard time selling it. People are looking for nice covers, glossy pages and stunning color art. Even if it means paying a few more bucks for it. Look at Dark Heresy, Anima or Solomon Kane. As much as I love Mongoose, I must admit that their printing quality doesn't reach these standards yet.
I've been on boards where Mongoose books have a bad reputation, partly because of the binding/printing poblem (that must have hurt the company a lot, I think) and also because a lot of people are finding them ugly (no maps, poor art, B&W...).
So maybe it's time the worm changes into a nice butterfly (wielding a bloody axe, of course...).
Long Live Mongoose