As a frequent traveler, I appreciate not having to stand in line to check in/out...
I have to say, until very recently, I have been a huge frequent traveler for both work and pleasure...flying 2+ times a month across the USA, staying at hotels 4+ times a month...since 1999...about 15 years. And I rarely (super rarely) even used any of those Gold Member-type lines open for frequent travelers.
Out of the literally hundreds of hotel stays, I've probably waited in line longer than 5 minutes 5 times. I've mostly stayed at Hilton, Marriott, and similar quality brand hotels. There is no wait unless possibly it's a resort and a ton of people show up at 4pm because that's when the 2 flights to the island come in.
There is no checkout unless you have a problem with your bill...which 9 out of 10 times is just easier to call on your room phone and get is squared away in 2-3 minutes.
But regardless of the wonderful technology, we're still going to have to stand in SOME kind of line to confirm our stay, room selection, upgrade choices, billing method, etc. It's not like you're just going to walk from the curb, your phone pings 4 seconds later that you that you're all set, and you walk into the elevator and go to your room.
Anyway...I just wanted to chime in about my lack-of-standing-in-line for the past 15 years.
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Use the deadbolt.
when I'm not there?
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Those key cards can be hacked just as easily
Yes...by a super significantly fewer set of humans compared to all the hackers out there with their smartphone or iDevice. They are typically hacked by insiders such as hotel employees who steal a device or "borrow" it for a few days and give to their hacker friend....then the hacker needs to buy/obtain the cards themselves. There is soooo much more work to hacking a card reader than there is programming a phone/BT 4.0 device to start scanning the doors.
It's not the system...it's how AVAILABLE the system is to hackers in the first place to hack. Card reader systems are NOT available to Joe Hacker. But iOS is...and so are the iDevices...and so is BT 4.0.