Re: Horses for courses?
Yeah, my feeling exactly - btw. I looked at the memory usage on my work machine (32GB). The actual work (some rather computationally expensive stats stuff) uses 6GB (using all but two threads). Firefox uses... a ton, WTF? I guess that this is sort of machine-dependent (and htop might be confused about the forked childs - three dozen or so - WTF?!), but this is by far the most memory hungry process on this machine. I also have a massive figure for a paper open in Inkscape - which seems written quite well, so the memory usage does not explode into my face.
Bottom line: I could likely get away with 8GB RAM, or even less, if my data analysis stuff would be running on a dedicated workstation (instead of my desktop). On a laptop I clearly do not need that much memory if it is not my main work machine (it is not - it is to do some stuff while on the road, but not the heavy lifting, and I want it to be small enough to be able to work on a plane or the train, and the data analysis stuff runs a few days, continously). I do need a ton of HDD (also on the laptop), the datasets I work with are a few GB each. And there are a number of those... (no, downloading them over a crappy conference, airport lounge or hotel wlan is not what I want).
Actually, my old Samsung netbook was close to a perfect match for my needs: method development worked ok, long battery life (10hrs), small (10"). An updated version (more threads / cores, bit more RAM, bit more HDD, say 1TB) would have been great - alas, they don't make stuff like that any more...