They’ll have twice the maximum space of the current fourth-generation iPads, but they’re not for bargain hunters: The Wi-Fi-only model of the new 128GB iPad will carry a suggested retail price of $799, while the ones that also handle cellular connections will go for $929. They’ll be available next Tuesday at Apple‘s online and bricks-and-mortar outlets. The company’s targeting businesses that need extra storage to handle memory-intensive applications and files including 3D CAD, X-rays, film and music editing, and blueprints. The additional memory means that “enterprises, educators and artists have even more reasons to use iPad for all their business and personal needs,” Apple SVP Worldwide Marketing Philip Schiller says. Apple’s unusual decision to upgrade the iPad midway though its life cycle has led to some speculation that the company will wait longer than expected to introduce a fifth-generation iPad. The current model was unveiled in October. But investors appear to like the move: Apple shares — which are down nearly 35% since mid-September — are up 1.2% in early trading while the overall market is flat.