Tie-in series

Has there ever been a media tie-in series where the books were
so bad as to actually drive off customers? 


	As I recall, the first B5 novel was incredibly awful but there
were more books. My suspicion is that external factors like Rick Berman
are more likely to (indirectly) cripple a line than having an installment
that is monumentally subpar.

	Note that I am aware Berman had nothing to do with B5.
-- 
http://www.livejournal.com/users/james_nicoll
http://www.cafepress.com/jdnicoll
(For all your "The problem with
defending the English language [...]" T-****rt, cup and tote-bag needs)