That would have put them in strong competition with HP, DEC, Sun, SGI and NEXT. Those companies didn't require so much marketing since they weren't going after home users. They were focused on high end scientific and educational markets.
I actually think Commodore would have done better in that market. Commodore was much better at leading the race to the bottom on pricing than at competing once prices had reached the bottom.
The C900 could have done for scientific computing what the C64 (or at least VIC20) did for home computing.
