It is worth remembering, that this money is not actualy being given away, it is being used to cover bad debts and it will be expected to be repaid over a period of time.
Also it may not all be used as it is insurance to enable the banks to function in what would be considered a normal fashion.
LeMarchand our entire economy is based on supply and demand. The more you have of something the less it costs, however if you take say an X-Box at the moment it may be considered a luxury because many people will spend on either other luxuries or necessities, however if everyone can afford an X-Box supply becomes short and the price gos up, therefore the cost of living go's up and the people who make X-Boxes want a rise, therefore if you think of this lateraly, Inflation has gone up and the currency is devalued.