DS wants 12 x lego sets for xmas.. how to prepare him for 1 or 2 ?

[pipo]

DS has listed every lego set in the argos catalogue on his xmas list. i have tried saying nicely that he will probably only get 1 or 2 as they cost a lot of money but he says that father xmas doesnt need to buy these things - they are already there in greenland.
i think i may change tack and say that there is only a limited supply so he may get 1 or 2 and so i do not have to argue about the money aspect and hope that this sinks in eventually.
my other concern is how to decide which set to get him as he has changed his mind 3 times in the last 3 weeks as to which of all of them is his favourite?
do people give their kids a cut off date when xmas lists must be finalised by? i am thinking he is so obsessed by it all this year (he is nearly 7 ) that he is going to be revisng his list until xmas eve. i am panicking that if i leave it too late i will not be able to get THE set that he eventually decides on.
any tips to stop me lying awake worrying?

hi- thenk you for all your tips. we have had a chat today were i have tried to lay down some ground rules. I.E. the letter must be posted to FatherXmas to give him enough time to get everything ready - this will stop him changing his mind (or if he does it will be too late), there can be maximunm of 10 items and only 3 of these can be lego. ( I know he will include some small things in the 10). Father xmas will get him a large/medium lego and small things off the list to go in the stocking. I will get him a medium lego set and if/when my mother asks for suggestions she will be told medium lego set please. that should cover the lego i think.

unfortunately, the lego xmas catalogue arrived on thursday - unwrapped and so DS was straight to it!! some of the lego sets are £200.00 and upwards !!! I am not surprised he doesn't fully understand the concept of money at times when 'toys' cost this much. I will be desperately steering at least one of his 3 lego choices under the £100.00 mark so that 'father xmas' can afford it.
thanks again

When mine were little I always told them to think of one present to ask Father Christmas for and that went in the letter. Other presents were from us and grandparents and other relatives. They accepted this quite happily. Their stocking was also from FC but had only small items in it. They were always very satisfied with this explanation.

Lego star wars- OP I feel your pain!

This morning my 4 yo greeted me with "mummy i really want the millennium falcon" to which I replied " I think you mean "good morning mummy"

Im getting my ds the Lego city advent calendar and one star wars set. Am watching prices at mo.