It's no secret that GoLite's philosophy has always been to get more people outdoors. They've sought to do that by offering durable and attractive lightweight gear and apparel. Early in their days they were offering what was at the time very lightweight stuff. Now, things have gotten a little heavier (maybe a lot to those of us who wring our hands over 2 oz), but it's not that they've abandoned us; it's that we've moved on. It's not them, it's us.
I admit, though, when I look at the new line, I can't help but think, "Wow. $230 is a darn good price for a 20 deg quilt. Maybe it's worth the extra couple ounces. That Katabatic Gear quilt is almost twice that price." For all the people like me that will sit and debate that, there are five for which that decision's a no-brainer. They don't care how much weight GoLite could have saved by opting for 850 FP down (v. 800), or by using Pertex instead of 20D nylon.
So, back to the original post, the tent systems are really about the value proposition. I have an original SL1 and love it, but there are many people out there that will want the bug nest. I hike primarily in the Colorado Rockies where bugs aren't really an issue most of the time, but GoLite sells to a national customer base, and people on the AT or in Montana most certainly care about bugs, and they don't want to have to buy multiple tents for different conditions. Instead, GoLite is selling 3 tents for less than the price of many single-walls or tarp tents.
What does this mean for me? I see myself buying less and less GoLite, but it doesn't stop me from recommending their gear and clothing to friends and family.