18th birthday investment

Car4ayd2 · 2016-01-10T02:42:45.000Z

So I am a mom to 3 boys and just as I enjoyed legos as a child so do my boys. I would like to start a collection for each of my son's to gift to them on their 18th birthday. They are ages 11, 9, and 6 months. I saw star wars and advance sets have increased significantly the past few years. My budget is $2000 to start their collection. I plan to buy them each a set and put it in a secure location out of their reach until they are 18. Can anyone point me in the right direction as to where to start. Should I start with star wars, ghostbusters, there are so many sets I don't know where to start.