if people aren't spending bitcoins - that's what i see/read around here; everybody is waiting for the price to sky rocket - this means we are creating our own bubble and we will 'die' in it! We only buy bitcoins, so the price at this moment is above, super above of what a bitcoin really value.
Not everyone is waiting for this, but even if they were the more coins that are taken out of circulation by hoarding is good because it helps the supply and demand. If more people get involved and even do the same it would have a positive effect on the price.
Yep, hoarding supports the value, in fact all holding, small or large, (reservation demand) supports the value, and is the only thing that supports the value. Usage in payments helps to spread the word, though.