OK, OK, the new guy is a whiner...
I'll assume the ribbing is at least mostly good natured and won't be thin skinned about it.
You got me, a deck of cards isn't accurate. I had intended the exaggeration to be a little humorous. If you have to explain the joke it didn't hit it's mark. It's more the size of a box of small wooden matches. Roughly 2.25 x 1.25 x 3/8 inches. Heavier than I'd like, but not heavy enough to have that expensive feel.
On the positive side - the smart key is smaller than the combination of the key and the key fob from my wifes old 4runner. But I just elected not to carry the fob, and not using the keyless entry wasn't a big deal. Now I don't have that option. If I don't have this whole thing with me I can't drive or enter the truck period.
The smart key, plus the key fob from my Tacoma and the keys I have to carry is too big for me. If indeed there is a Lexus solution that would solve this I'd consider it.
If I was 24 and needed only my smart key, key to my bachelor pad, and to the key to my storage facility where I kept my motorcycles and jet skis I would love this thing. Of course when I was 24 I couldn't imagine ever buying a car with less than 50K miles on it - much less motorcycles and jet skis. Oh well...