Most likely I will be shopping for a Varia bike radar...unless somebody tell me to wait couple months maybe. I can wait that, the winter just hit us here in Canada and we won't bike outdoors at least to mid of April.
I live in a huge city (Toronto) proximity, lot of new developments-suburbs getting finished every 3-4 years here up North, meaning double the traffic on sideroads as well, these our Hwy's just cannot handle the constantly increasing number of cars. Getting difficult riding around weekdays after 4 pm, 5.30 don't even think about until maybe 7.30 pm.
Last year I have found couple nice gravel trails but the most longest without any traffic I can collect maybe 50 Km (total there and back). Occasionally 50 Km is OK but for a longer ride I must take the asphalt, and the traffic is terrible, pickup trucks, SUV's big trucks, getting scary lately.
Eyeing that Varia radar, not cheap (about $300 CAD), I would still go for it for my own sake, but maybe a new product would surface soon?