Target via eBay offers the LEGO Super Heroes Quinjet Aerial Battle, model no. 6869, for $48.99 plus $4.98 shipping. That's $14 below our mention from two weeks ago and the lowest total price we could find by $28. It includes pieces to build the Quinjet and miniature figures of Iron Man, Thor, Black Widow, and Loki.
Before you spend another dollar on items and services like these, check with your public library. You will likely be surprised by what it offers for free.