$155.00 is a great start to the hobby... please read...

1: I think it's awesome you and your son will be flying together.
2: Do you have a flight simulator? (If not, that's the first thing you need...)
3: Parkzone makes great foam flyers... (The best thing with a foam plane is the glue and excellerator that mend foam in seconds...)

http://www.*********andmore.com/category_349-list.aspx

Here is the hobby shop right down the street that would love to sell you a nice foam starter plane.... The owner is great...

Have fun with your son, I know my son loves it....