Tri-state1 via eBay offers the mPULSE BLAST Bluetooth Speaker Dock for iPad/ Tablet in Black, White, or Red for $49.99 with free shipping. That's the lowest total price we could find by $30. Features include a 3.5mm audio jack, 40 to 60 degree angle adjustment, and up to 10 hours of battery life. It's compatible with most tablets ranging 7" to 10".
Knowing how dealerships work is key to getting the lowest price on your next ride.