I didn't mean to make this veer off-topic. But yes, I recently started looking at component assortment kits on eBay, etc, after discovering those exist. For a moderate cost, I could have a whole bunch of stuff available (for the price of a handful of items from RS).
Of course, it's just about guaranteed that if I suddenly needed something, it wouldn't be in the stuff I'd already bought But it's still a good idea.
Well, I have no problem with veering this off-topic, as Radio-Shack has been utterly despisable (in Canada at least) for all my life and I'll be glad to see them go.
But I think it's important for hobbyist to slowly build a small stock of common components, so that you can start a project whenever you feel like it. Even lacking exact values or specific ICs, having say an E12 assortment of 1/4w resistors, common capacitor values, some inductors, basic opamps, 555s, diodes, transistors, voltage regulators and some microcontrollers in your drawers should allow you to at least get started while waiting for the specific stuff.
The problem is actually, WHAT to select for your "parts cache" and that is heavily dependent on what your general interests are.
I like building old-school computers and digital apparatus, so I stock CPUs, memories, GALs, CPLDs, and most 74S and LS devices on top of the very basic "universal" stock.
Someone deeply into RF or power projects would find my stash useless, even though my Excel inventory now list over 500 different parts!
I think we should start compiling lists of the very useful ICs and components by electronic "subfield" or "specialty" so that beginners interested in a certain aspect can get a rough idea what to choose?
Maybe this could be put in the wiki? What do you think?