You won't get many responses on here for the Tundra as there aren't nearly as many owners as the big 3. That being said, you also won't find many actual owners with bad things to say about their Tundra either.
You are correct that the Tundra is lacking a lot of the gadgets and gizmos the others offer but you won't find the reliability, resale value and customer satisfaction with them either. Which is worth more to you? And how many of those overpriced gadgets will you really use?
I traded my '07 Tundra crewmax limited for a '14 Ram 2500 Laramie with all the bells and whistles. I've been shopping for another Tundra ever since. The Tundra went into the shop twice in 5 years for unscheduled maintenance. Common AIP pump failure covered under warranty (newer models have been changed) and once for a belt failure (my own fault). I'm never comfortable driving the Ram as it's left me stranded so many times. Spends weeks at a time in the shop, including 4 transmission rebuilds. Most of the gadgets have failed at least once, brakes seized, countless electrical problems, chrome rusting, mirrors failed, seats fell apart (twice)........
Why do I still have the Ram? It's still under warranty and the trade in value is horrendous, last offer was $28k CDN (for a $79k 2 year old truck!) and I can't find a Tundra for a reasonable price. People just don't sell them and if they do they command big $$.