Sorry VikingsGuy and YoungGun but I think Onx is moving away from chips in a hurry, in fact the entire industry is... I will make you a gentleman's bet of $1 that in 2 years onx will spot doing chips completely and that in 5 years no one will make a device that takes a chip, and that in 10 years there will very few standalone GPS navigation devices.
I've got both the chip for my ETrex-30 and the download on my phone, and the phone is obviously a very nice and convenient way to go, but there's something about 30+ hours of battery life from a couple double A's that my smartphone just can't match. And this is coming from a "Millennial." I'd agree with your bet to an extent- I may not be able to buy VHS movies anymore, but I can still buy a player for them. The company's might stop making the chips, and why wouldn't they when they can have a constant revenue stream from a subscription service, but the devices will have ports for the chips for quite some time. I do think Garmin could really open their already strong lead from the competition by doing just that with their inReach.