So, is it worth waiting for the 4000?

I have mostly Sony equipment (plus a required Motorola cable box). I was looking at the Sony LCD remotes for the same reason as JV, I want to tidy up the clutter. However, the top model we have in the Great White North is the 3100. Reading about it, it seems that the 4000 has the PC programming and it doesn't appear that the 3100 has that. Is it important, or is the list of codes plus the learning feature enough? Anyone used both? (It seems that the 3100 is an expanded 2500) Appreciate any info or opinions.

__________________
2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue