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I thought so too until it saved me paying $90 for a new garage opener.

You can buy a nice rolling code receiver and pair of programmable key fob transmitters for $15.

That's only an option if you own the garage door itself, not if you're i.e. renting in an apartment building

It cost more than 90 but the bragging rights are _priceless_.

Sounds like they already had one, so they saved $90 by not having to buy another garage door opener by using something they already had.