Right now we have a problem. Bitcoin's price is rising so fast, so high that you would be silly to spend any of them on goods and services. Yes, downright stupid. $15 in January, $60 in March, $160 in April. At this pace we're looking at well over a thousand dollars before the end of 2013. Parting with any bitcoins now is leaving a huge wad of money at the table and literally walking away.
One can look at the trade volume on MtGox as evidence that people are spending, but it must also be considered that people are rather speculating and trading. One side wants to get out before a probable bubble pops, the other side wants to buy as many as possible and dump before the bubble pops.
WHY ON EARTH DO PEOPLE KEEP SAYING THAT NOBODY IS SPENDING BITCOINS?
It just keeps popping up... and I can't for the life of me figure out how we come to this conclusion.
Bitpay is getting a RECORD number of new merchants, and their sales figures are increasing at a record rate, so it's not just merchants signing up for an unused service... it doesn't even matter whether or not the merchant cashes out to USD; people are SPENDING BITCOINS. Sure, it sucks when you buy something with bitcoins when they're $24 and then at $150 you think of how much more money you could have... but what are you going to do, throw every single cent of FIAT at MT. GOX and live in a cardboard box on a hunger strike until bitcoin hits $1,000,000?
DUDE, THAT'S SO TOTALLY NOT HOW IT WORKS. (Is anybody doing that? PLEASE tell me if you're doing that, so I can laugh at you, for being the one idiot that doesn't spend during deflationary opportunity)
Your theory is whack because it is based in a Paul Krugman wet dream fantasy world where people don't spend deflationary currencies since they will be worth more in the future. People are human, they have needs that must be fulfilled in the PRESENT MOMENT. When the need for something in the present moment surpasses any potential future benefit of putting off that need, the person will seek to meet the need in the present. Sure, I'll give you this: The faster the currency deflates, the saving:consumption ratio increases. But we're not at a point where nobody's spending bitcoins, because if that were the case, NOBODY WOULD BE SPENDING BITCOINS. By the way, the charts above say this a little better than my violent stream of arrogant language so I apologize. The problem you describe - we simply don't have this problem right now. When bitcoin starts going up 1000% a day then maybe people will start throwing every cent of fiat into bitcoin and living in cardboard boxes - then I'll concede to your superior logic :-P
People are spending bitcoins. So, Q.E.D. wipe Krugman's inflationary emission off your face and buy something with your bitcoins.