The quality difference between a $50 and $150 pair of sunglasses is huge. High quality sunglasses (I personally like Oakley and Revo) shouldn't scratch very easily. Yes you have to care for them a little, but they're somewhat tough. Also the frame construction is way better. You can see the quality difference between cheap and expensive lens.froze said:I'm a tightwad and when it comes to sunglasses I don't go overboard, I did that once and they got scratched, which they will because they make them out of thin plastic to save weight, you're screwed out of $300 or so bucks, my plastic sunglasses don't last for more than one season before they're scratched. The best sunglasses I had were a pair of Bolle, can't recall the model, but these were a glass/plastic laminated lens that is considered heavy by today's cyclists but I wore them riding without flinching over the weight, the lens was indestructible, never got scratched in the 15 to 18 years I wore them; I still wear them today but not for cycling because the frames have stretched over time and won't stay on well for cycling, but work great for fishing.
So now I wear Tifosi, why? because they're low cost, and replacement lenses are low cost at only $14. I got the Fototec green which they no longer make it in the green, but the Fototec technology doesn't darken as much as other glasses I have or had, in fact they barely change at all, just a shade, that's the negative; and the lens itself even though the green had the least amount of light entering it still isn't a dark lens so I use them on cloudy days. When I was at the LBS trying glasses I couldn't tell any difference between the Tifosi and any of their much more expensive brands, no distortion, nothing between any of them. and quite frankly I know there isn't anything the other more expensive glasses have that's worth anywhere near $200 difference.
For sunny days I got a pair of sunglasses from Costco called Drivewear which required a prescription to get, and mine is the lowest correction that can be made into a lens, but I haven't been able to find a lens comparable to these in any cycling lens, and they have a new type of scratch resistant treatment which so far after only 5 months no scratches. But these Drivewear lenses actually change color and darkness, in overcast conditions the lens is a greenish yellow color, but as the day gets brighter they'll change to a reddish brown, but inside a car they'll turn a copper, really nice glasses, but they don't wrap like a cycling glass will but I haven't had any issues with wind drying my eyes so I'm good.
There are a lot of things in cycling that is simply ripping off cyclists, but that's the way a big ticket sport is just like golf does when they say their golf clubs endorsed by Rory Mcllroy the Super Multiplier 2000 patented MOI optimized carbon fiber shaft with an exclusive titanium gyro optimized trajectory technology head will make you a better player for only $1,200 per club...err no it won't, your golf score won't get better, and the cycling industry is doing the same thing.
Anyway glasses like saddles is just a personal opinion/preference.