Computers like the IRULU Walknbook 3 and my ASUS Transformer T100TA are convertible tablets. These two have detachable keyboards, so they can be used as a laptop or a tablet. (Other types fold and/or twist into tablet mode.)
I don't have any problems running Hero Lab as a player on my Transformer. It's not a high-performance machine by any means, but it's good enough. I just don't know what you'd be able to find for Windows (not RT) tablets in your price range.
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