Its one of those questions only you can answer...
You know your own driving habits better than anyone else, and you have owned a 4x4 in the past so I presume you know what to expect.
That said, there is a reason the 4x4 trucks like the Tacoma and 4R have a hefty premium attached, hold their resale value like crazy, and get snatched up fast.
Personally I couldn't fathom owning one that wasn't a 4x4... but I also use them often off-road, trail, and desert. For road trip and snow, the convenience of not having to deal with chains was a big deal. I use it enough to the point I am toying with the idea of getting ARB lockers front and rear...
I also have a 1500 Silverado which has 4x4, and is more of a tow/hauler and not an off-road rig, but there have been times where having it has saved me a great deal of grief. If it was a 2x4 I would feel like I have a crippled rig.
But if you never leave the city... then... you should at least get a TRD Supercharger on that V8 for it to make up for the lack of awesome on drive train. But all joking asside, you could always add an ARB rear locker if you were worried about traction, but that really isn't an accessory for snow. If snow is an issue, then a 4x4 adds a lot of on-road confidence when driving.