The E Flite Stick 25 is a BEAUTIFULLY flying airplane. Could absolutely be a second plane on low rates, and will give you a much more exciting flying experience then the Super Cub.

Here's an on board video of mine just 2 days ago, I'm flying with a power 32 motor set up on 4 cells, you can see this plane has unlimited vertical and plenty of performance, but will also slow down to a crawl and is amazingly stable.

[youtube]http://www.youtube.com/watch?v=d4zoi-sP9Q4[/youtube]

Good luck on your decision, there are also PLENTY of small BNF planes that won't break the budget, and will absolutely quench your thirst for fun and performance. Also, now with the AS3X technology, they are actually fantastic small flyers with impressive stability.