I do light web surfing, reading and writing papers, occasionally listening to music on youtube, etc. No image/video editing at all. I sometimes run simulations which do not require heavy data processing. I was thinking of 4gb/128gb as I recently got to travel often, but saw someone willing to sell 2gb/64gb at 150$. I thought 2gb/64gb still has it, and you know, the price was something that I couldn't pass. The battery cycle was at around 150, too. Do you think it's a good deal? Or should I cancel this and throw some more money to go with 4gb/128gb?