Don't get me wrong, I think the tank looks awesome. It's just a heavy sticker shock for me. I've also paid anywhere from $50-200 for Masterpiece Transformers, so I also get that sometimes it's worth shelling out more for the added details. I don't think you can really compare it to 3rd party stuff like this or the APC though - the overhead and volume of that stuff just makes it a totally different pricing model.
I absolutely think it's worth an upcharge, but how much of an increase? The U-Wing was $50 for an all new design, moving wings, landing gear, cockpit, Nerf accessories, etc. The Tie Striker was $40, with similar features. For $90, Hasbro had to design two brand new ships, 2 exclusive pack in figures with weapons, 2 separate package designs, interaction with Nerf shooters, etc. You may not want or need all that, but none of it was free. The tank is highly detailed with some awesome features, but it's one package, no figures, and about the same price as these other two vehicles combined.
That math just doesn't tie out for me. Despite a comparatively better value, you can easily get either of the R1 ships for $20 right now. As cool as the tank is, I think its going to collect dust at $80. It's too big a price jump, just like we saw with the $300 AT-ACT, and I won't be at all surprised to find it knocked down to $40-50 in short order. I'll buy one at that price, but an $80 item selling for $40-50 can't be all that exciting for Hasbro or retailers, which puts similar items at risk for future development. By comparison, I think they could have listed it for $20 less or maybe $65 with a figure and watched it sell out. It's just difficult to swallow twice the price as I don't see it as twice the offering of their other items.