There are lots of things that make pumps better than injections. A few that spring to mind (with reference to Christmas Day) are:
* basal can be adjusted at any time of day - so if you are sitting around watching TV and opening pressies (less active than usual), you can set an increased temporary basal rate so your BGs don't rise
* extended boluses (where part or all of the insulin is programmed to be spread over a few hours) - ideal for long spread out meals, or for nibbles and drinks, buffets etc. Also very useful for foods that digest slowly.
* push a button to bolus (no injection) - so if you fancy a second helping of Xmas pud, you can have it with insulin without having to jab yourself again. In fact, with meals like Xmas dinner where you don't know in advance how much you will eat, it's great with a pump - you can bolus a "deposit" of insulin upfront, then pay-as-you-go by bolusing more insulin for each extra carb item. For Xmas dinner my son probably did 8 boluses at the push of a button, whereas most people wouldn't fancy 8 injections and would either inaccurately guess
at the start of the meal, or deny themselves the treats!
Lots of other benefits too! 🙂