Not convinced this is a mass market product. Obv Shearwater diehards and those wanting buhlman with like it and I'm sure SW did their market research
From a dive centre POV - it's sitting in a display case next to a D5 or AL computer that have compass and AI - so to the average rec diver, it might not be an enticing buy
Time will tell - perhaps this is part of a medium term SW strategy, where they move the Perdix upmarket perhaps with a redesign, and then add AI and compass to the Peregrine
Do you mean D4i rather than D5? D4i runs ~500USD and has AI but does not come with nice color screen. D5 is rec oriented computer that runs at ~879USD and has AI. Buyer would have to decide whether AI or color screen was more important. I think current trends are the color screen is more of a draw but I could be wrong.