Many thanks for your input! Plenty to chew on indeed.
I know this is an entry in a busy field, and not as intricate or impressive as some, but I'm not too worried about it. I'm not running the Kickstarter for income, it's just something I'm trying to see if I can get better prices per deck for the people who have expressed interest, and while I'd like to see the Kickstarter succeed, it's not something I'm counting on to feed my family, it's an experiment and experience. If this were something I was going to do for a job, yes, I'd find an underserved niche. I may yet go that direction, as I have other ideas, but that's for another day. This wasn't designed with Kickstarter or even mass production in mind, and I've definitely noted that such would tend to have different goals and appeal. That's not to say the advice is unwarranted or unwanted, certainly, so thank you. It's just that it might be most relevant on future deck designs if I'm really going to hit this hard and make a more serious approach to it.
Interesting on the pip layout and card back, thanks. Both are contrary to what I've seen elsewhere, but I think input from around here is more relevant. The back is what I've been most concerned about lately, and I think it should be a relatively trivial evening's tinkering to make it symmetrical without losing too much of what it's doing at the moment.
Looks like I have more research to do on printers as well, so many thanks for the leads! I did get the sense that Bicycle is... maybe overrepresented on Kickstarter, but gorillas do need feeding and watering or they get cranky.
If I may ask another question, though... what about the difference between plastic cards and paper cards, and is there a plastic card printing gorilla as well? Maybe I was reading things incorrectly, but I got the sense that UPCC doesn't do plastic. I'm not experienced with plastic cards, but I've run into some people who prefer them over paper, so I'd like to dig more into that market. Thanks!