Holding the money can be good or bad for Bitcoin, I don't know which one it will turn into: a higher price because the supply will get shrinked or a smaller price because the demand will not be the same (if each of us would do it, nobody would spend it anymore)?
If you appreciate the price to reach higher levels, then people holding their coins is a more than curcial aspect, since it diminishes the number of coins in free circulation. It's impossible for each and everyone to hold their coins firmly without cashing out and buying back at some point. It keeps the market moving, where you simply don't have to worry about people not being able to spend their coins. The higher the price is, the lower the amounts will be that people work with. Even if people do end up holding more coins, then the increased value will make sure that with the lower number of coins that are left in free circulation, they still are more than sufficient to keep people spending their coins wherever they want.
Easy example - back in the days people were buying $50 gift cards here on this forum for like 10-20BTC. Right now due to the increased price you will need a far lower amount to purchase the same valued gift cards, namely 0.0488BTC.