Either way I'm back to my first post.
The only reason I asked is not that the electrolytic caps are too expensive, it's just that when I see things being suspiciously expensive I wonder if it's because I'm picking the wrong (rare, low demand) part.
Further looking capacitors seem to vary in price dramatically. There are 100nF multi-layers that cost £0.012 in a strip of 100, but there are ones that don't look any different from spec which are £0.19 each!
I would buy a cheap chinese multi-pack, but I doubt very much I will use most of the values. Ideally I'd like a kit which has 100 each of the 10 most used values.
1, 10, 100, 330, 1000 uF
10, 100nF
22pF
Is about all I have ever had to use so far.
However the pF, nF packs are at least cheap.
How risky would a pack of surface mount aluminium caps from china be?