On the surface, the 3010 seems expensive. It is expensive. As much or more than most lenses. However, it takes all the worry out of developing 4x5 film. What are your latent images worth? The 3010 is cheap insurance for perfect negatives and postives. The 2551/2553 tank and reels is a close second at 1/10 the cost or less. The 2551/2553 has the advantage of taking 3 formats. That's a real plus too.