Good grief, everyone getting so wound up over which light to use.

For me, it comes down to this. Everyone rides in different conditions. Quiet roads, dense traffic, no lighting, riding under storefront marquees.

Is the Dinotte bright? Hell yeah it's bright. Almost too bright. Perfect if you're riding in heavy weather, dense traffic, and desperate to stand out among the myriad of headlights and other distractions on the road.

But in other situations, you can get by acceptably with something a little less dazzling. Look at ColorChange's pic of the sidelights on the Cateye:
That's just two little 5mm LED's, perfectly capable of attracting attention when riding under less-than-severe conditions. Granted, not everyone is so lucky as to ride on quiet suburban streets with slow traffic.

But everyone has different needs and priorities. The Dinotte's "splash" on the ground does have great side visibility under certain conditions. (nearby objects to the side, concrete pavement, dry conditions, etc). But it may not be much at all under other conditions. (crossing a black asphalt street in the rain, no nearby objects to the side) Under those conditions, the same budget may be better spent on multiple PB's or Flashpoints than on a single Dinotte.

By the same token, the reason I didn't go with a PB is because I use a helmet mount, which means it's very likely that a lot of the time the light will be off-axis to cars behind me, and I felt the PB's performance in that regard would not be as acceptable.

Don't get me wrong. The Dinotte kicks ass and I am firmly in the 'more is better' camp. Just that sometimes, more means more physical light sources, and not just one really really bright one.

In this context, moxfyre believes that the 5-LED blinkies he used before was acceptable for his riding conditions - he's mainly looking for better durability. The Dinotte will be tough as nails in this regard. But I've also found that PlanetBike and Cateye have been acceptably durable as well, particularly with LED's I don't really recall having a bike light fail on me yet. (knock on wood)

So my vote - either go with the Dinotte or go with PB's/Cateyes. (multiples, even ) Comes down to which suits your purpose better.

Happy riding!