X220t (4296 topseller) vs (4298)

I'm a little confused as to what the difference between the Topseller and non-topseller models are.

In tabook, 4296-37U and 4298-43U--As far as I can tell--have the exact same configurations (and both have the same warranty too). However, the MSRP published for both of them at costcentral differ by almost $1000!

Topseller: $1929 MSRP Lenovo ThinkPad X220 Tablet 4296 (429637U) - Laptops / Notebooks

Non-topseller: $2903 MSRP Lenovo ThinkPad X220 Tablet 4298 (429843U) - Tablet PCs

Am I missing something blatantly obvious here?

 

If you do, so do I. Even with specs of both models next to each other I cannot find any difference other then the term 'topseller'

But, if the cheapest of the two has all the options you are looking for, forget about the other one and just order the 'topseller'

(I would wait another few hours, X220 is supposed to become available from Lenovo today)

 

Yea, Everything else equal I'm just going to get the cheapest option. I just wanted to make sure that the two were equal though (and it wasn't just me going crazy). I'm going to wait until tomorrow (or tonight midnight...?) for the official x220 launch and see if I can get better prices from lenovo direct.