Well dunno. I played with the 2620 for 2 days after "borrowing it" from Best Buy. I had no trouble doing routes right on it. In fact I enjoyed comparing what it came up with vs DeLorme.
Then (as Bernie described) I added vias to get it to match DeLorme. All through the process I kept joyfully thanking myself I did not have to upload any map data, no matter what origins and destinations I selected. I think Street Atlas has spoiled me that way. Maybe after I have fulltimed for a few years I will settle down to some favorite areas that will fit on a card. But right now everything is shiny and new to me and I just love plotting routes every time one of you mentions a new place. This morning I have been plotting routes to Peg Leg for example.
For now, I think hard drive is best for me. In a few years I might switch over to a new GPS with flash memory. I had my fill of flash memory though a few years ago both with land based and nautical GPSes. I found them a PITA.
I will say, whether a 2610 or 2620, that GPS design is fabulous. My current plan is to use Delorme on my laptop for route planning only. Then put away the laptop when we fire up the pusher, and do all live navigating by Garmin. It takes up so little room and I won't have to install a mount for a laptop.
I especially love the way it keeps recalculating routes automatically when I deviate from the original route. I found I did not miss voice command at all. I think that is because the interface is so well designed, you seldom have to tell it to do anything at all. It gets me back on track without my command, it zooms in right when it makes sense. And if I set the tabs right, I always have next turn info and ETA and things like that whenever I need them. And if I simply have to tell it something, in one day I already learned to use the remote control "by feel".
And the GPS voice is excellent. I think it is cool how they integrated the speaker to the cigarette lighter adapter.
BTW has anyone figured out a way to get audio output from the Garmin fed to another device? Not sure it is necessary as the speaker is plenty loud, but just curious in case background noise gets very high. I like to play music while I a running down the road and it might be cool to feed the Garmin audio into my entertainment center.
This must be about the best automotive GPS on the market.