Progressives just don't make sense to me. I have a pair of computer glasses, and a pair of bike riding glasses, and I never ride my bike while using the computer. So why would I want to have 50% of my vision blurry at all times?
I got bifocals for driving, so that I could read the gps when necessary. Turns out it's not really very useful because it's hard to "glance" that the gps and get it in the right area of my vision to use the "reading" part of the glasses. I wouldn't do it again. That being said, having the "reading" part of the glasses doesn't negatively impact my using them for distance, so I could see the benefit of the bifocal just so you always have the reading part available without needing a second pair of glasses.
To the best of my knowledge, bifocals are just progressives with a distinct line where the prescription changes; instead of having an area where it "transitions". They look archaic (social concerns, if you care about that kind of thing) in exchange for not having a whole area of the lens that isn't usable at all.
