Hopefully I won't kill myself. They seem pretty safe as far as rollers go. As for the money, I got most of my money back on the crappy BB trainers and the way I see it I'd have to spend $350 with shipping for a decent fluid trainer or the new 1up or double that for something much better for my training.
As for riding outdoors, I live in Hawaii so it's always "possible" but I workout at 0400 during the week and even with a light I'm not about to ride as fast as I want or need to in the dark.
I have only Saturday or sometimes Sundays for outdoor riding.
And if I need more resistance for the occasional "hill" workout I can still use my trackstand ultra (which uses the previous 1up resistance unit). It has SOOOO much resistance I can barely average 12mph on it even with it set in the least resistance mode. It's really good for standing and mashing though.
Gene