^I bought Matlab last year for a class, and then the professor said "nah, you don't really need to use this" and I ended up using Excel isntead, and still not knowing anything about Matlab (too old - we were still programming in Fortran, Pascal, and Basic when I was originally in school).
I got my wife an ASUS laptop last year with an i3 for around $450, and trust me it is SLOW - more than 5 minutes to completely boot up to where there aren't any delays. For myself I have a Sony with an I5, small SSD (with OS loaded), and it boots lightning fast (< 30 sec) and is very responsive. It cost maybe $750 but the difference in performance is well worth it, to me (but all kinds of peripheral stuff has failed on it, like the webcam and many "sticky" keys, so I don't recommend Sony).
Over the holidays, I also bought an ASUS transformer book for my daughter, who uses it primarily for social media and MS Office-related homework, but it seems very nice and boots up real fast.
KF, what about Samsung? I have several co-workers with nice looking Samsung ultra-books, and they say they are happy with the performance.