Yes, the chunky collections of stuff like Bunny vs Monkey seem to be pretty popular - I suspect the tankōbon format that a lot of young readers are familiar with from manga is a key here - but you're talking about a couple of hundred pages, which is a bit beyond what is available for collecting at the moment. If Rebellion can build up enough strip to reprint like this, there's nothing stopping them from repackaging it in other formats later, and it gets Regened stuff into book shops and Amazon etc. now to start building an audience outside the younger readers getting it in the prog format (either themselves, or passed on from older family).