Holding one full bitcoin would not be a bad idea at all right about now to be honest. The price is currently low and hopefully should rise again soon so holding will make your one full bitcoin worth more meaning you could probably invest in more than you could do now 
To hold one bitcoin does not really mean anything, have just be wondering on the price that moves low everyday, i do not really know what will comes up by next week again, but i hope it will be a better hope for us.