Foot massage ? On a serious note, having bought 2 of SP3, & having been using one every day for 2-3 hrs per, it will need to be a truly massive upgrade for me to drop the benjamins. Can't even quantify it. When it first came out, I bought SP1 and liked it a lot. SP2 was a dud, never felt slightest inkling to upgrade. Now, if I were to use SP3 for 8-9 hrs per day, as say a CS student, then may be I'd ask for 2-3 more hrs of battery life. But she charges do damn quickly, as-is. Throttling dont bother me, for # crunching I use a 6 core X79 LGA2011, overclocked to 4.6GHz. In similar conundrum with that 1 too, X99 just doesn't seem like a worthy update either.