Obviously it's Martin's call but I think it may be time for a different sales model to help Artworks development. I bet there are lots of RISC OS users out there looking rather enviously at what Artworks can do but not prepared to pay the not so insignificant sum required. RiScript may show the way.
Market a 'lite' version of Artworks for a paltry sum (less than 50 quid) but without the latest modules. The sell the extra modules at a price which should be able to subsidise more development. I can't justify 150 quid all in one go - but I could envisage spending something approaching this spread over a period. Furthermore, I bet there are quite a few like me.