Wow! This is just incredibly fun :). I mean it, I could go on and on… the looks and feels are great as well… I'll spare you the time and focus on what I think could be improved to make it even better:
Since the price of the dice increases when you buy it, you're incentified to buy all of them and focus on the ones currently cheap. If instead the prices rose gradually for all the dice at once, it would probably make more sense to think about different strategies and synergies – on one run I could try investing into a lot of money dice and then bombing them around, on another perhaps focus on getting dozens of magnets… This would probably require redesigning some of the dice abilities as well but what I'm trying to say is: deciding is fun, so try forcing me to attempt different builds :). I bet currently everyone builds about the same thing…
Another thing is how the game progresses. The ending is actually really sad, at least for me: the computer just can't keep up with all the dice and their effects so it plummets. One solution I can think of might be to limit the number of rounds instead of running out of money, say for 20 rounds. Another solution (if you really wanted to make the runs long) could be to every now and then create a "super dice" from all the small ones which would give you on average as much money and score as you got with it in the rounds before. Kind of like simulating the masses with just one dice. Besides, starting anew like this might be more fun than staring at a pile of dice forever.
To summarize my essay, there is some design that could be improved if you want to, but it really is a great great entry as it is and very well done :)!