The Oregons are touchscreen devices, which I personally consider a serious drawback in a cycling GPS. With a button-driven device like the Etrex you can fiddle with the GPS (zoom level, for example) without taking your eyes off the road ahead.
More over if you have big thick winter gloves on, touch screens can be a bitch.
All that plus OS maps don't rotate very well. The (optional) ability of GPS map displays to rotate as you turn is despised by some but loved by others. I think it is one of a GPS's best party tricks (along with 'distance to next'). Vector maps inevitably disappoint anyone who has been wedded to OS maps all their life (like we all have) but they are actually very powerful accurate and detailed in their own way.
I think something here worth mentioning is the way some people when they read a map will pick the map up, and rotate it round so that its alignment matches the place they are in. If a woman does this, the nearest man will usually tell them they have the map upside down and then take the map off them. When people do this to me I like to beat them repeatedly with my orienteering trophies...
OS Maps are a work of beautiful art, I love them, and have a nice collection, even if I don't have much direct use for them these days. In the event of a discrepancy between reality and the OS map, the OS map is of course the one in the right. Travelling far and wide by bike often makes me long for OS to map outside of the British isles...
I don't think anyone has mentioned that in the context of a long tour away from home - 2 or more weeks - a GPS is much smaller and lighter than carting a load of paper maps around. And although people will object and say that a GPS can fail, my solution to that is to carry a spare one - still a far more compact touring solution. (Actually in my experience GPSs are very reliable, for an electronic device.) Although we usually plan tours in meticulous detail, we have also gone the other way and toured across France ad hoc and paperless, just programming the next day's route into the Etrex the evening before, sitting outside a bar - it's perfectly doable and fun if you enjoy winging it. For the bigger picture and general evening browsing we have the IGN maps on a big-screen phone - but that is evening use only, we wouldn't use it to navigate.
I have OSMAnd offline maps on my phone as the ultimate backup, I also have a backup wahoo in the saddle bag. On tours, I do like to carry a very large scale paper map. My trip to Hell I carried a map of all of Scandinavia. It can be useful for laying out on a table in a hostel and get a good idea of what's ahead, without having to keep scrolling on even the relatively large screen of my phone. I didn't carry paper maps on the TCR, but my ultimate backup option was to cycle to the nearest gas station and buy a paper map.
Oh and by the way ...
That is a very unrepresentative example of what navigating on a cycle GPS looks like, for all sorts of reasons.
Agreed.
The little joystick thing on the eTrex is about as annoying as a touchscreen in normal use (the 'press down' can be a bit hit-and-miss, especially on a moving bike), but it's much more glove-friendly.
That said, when in motion, I rarely need more than the zoom controls or a random nudge of the joystick to wake the backlight up. Depends how much you like to fiddle, I suppose.
Zoom, change route gpx, switch screens to see more data, etc...
I like the buttons on the wahoo, I can operate them all with my big thick buffalo mitts, in the rain. It's a bit fun when the rain freezes on the device, but it can work. I don't understand how people think touchscreens are a good idea for devices you operate in a moving state... That includes the fuck off big touch screens in modern cars, looking at you Elon!
J