I must say that GPS update for current traps is a VERY attractive feature. I'd like it even more if the LEOs didn't move around so much in their patrol cars though.
Valentine charges varying amounts to upgrade their units, depending on the age of it. So, theoretically you could buy an older unit for cheap on eBay and send it in to have it upgraded to the newest version. Here's some details:
https://store.valentine1.com/upgrades/
If you own one like mine that's three years old, an update is about $60.
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