Saving is always good. If you have more than 10 bitcoin, then use some to stimulate the wide adoption.
Just by buying it you're stimulating wide adoption, because you're pointing out to the rarity of bitcoin, which will ultimately force the price way up high.
Anyone who has the chance and money to do it should buy and hold for the long term, because it's a no brainer to realize how the price in 5+ years is going to be in thousands.