For the few that still don’t have a GBA, Walmart is selling them online for $69 including a case. From the item description: “This bundle features the best selling Game Boy Advance SP with a beautiful brushed aluminum Mad Catz case. The high density foam interior protects your Game Boy Advance SP and also has a convenient spot to hold two games.”
It is the cobalt version, so it won’t have the brighter screen. Regardless, get ’em while you can, or buy one and flip it on Ebay for some petty cash.