You can curtail your ram usage if you want it to use less - the default is set to be fairly greedy. For myself though, I have photoshop set to use up to 20GB of RAM (and I routinely hit that mark) with a dedicated SSD for caching, but that's because I use 80-90% of the features in photoshop. If you're only using 10% of the program, consider switching programs.
Last week was another of those times when I needed to open a graphic and tweak a logo for the web. But I have a new laptop now, and didn't want to pay for Fireworks or go through the install just for something that I use so rarely.
So I decided to try out Inkscape and although it has a klunky X11 interface, I found it does everything that I need. Not bad for free software...
I'd have to agree that Fireworks is probably better suited for most web design needs... It used to be real simple to switch between the 2 packages, guessing it is still the same...
To be fair, though, it does a better job with my novels than Autocad does with my taxes. You can be sure that piece of junk got a 1 star review on the App Store.
Photoshop is the defacto standard tool for all kinds of image processing (not just photo-editing), and many (most?) of its day-to-day users actually don't use a significant portion of its features, which just clog up their systems.
I for one use photoshop every second day in my line of work, and 98% of what I need it for I could have done in photoshop 5, 10 years ago.
I would be great to be able to switch off a whole bunch of the features and filters and god-knows-what-else-it-loads-at-startup stuff and only load them if I actually need them, or be able to switch them off completely with some sort of custom profile. If i need some hardcore editing then I'll go into advanced mode or something.
No software is able to cripple my hardware like Photoshop.