Money allotment

Ok - so I’m not rich!! I am a VIP member and buy maybe 1 or 2 special offers a month. So I’ll spend maybe $20 a month on the game.
With the boost sales being so frequent I’m wondering if I should cancel my VIP in favor of using that money on boost sales.
Obviously with a unlimited budget I would do both but $20/month will be about my limit.
So my question is should I stick with VIP or boost sales? Opinions.

Put it in your kids college fund instead.