It's not always the best business model. Mars Toys has fallen prey to this with their DX08 KO and Romero Joker. Both got reissues b/c of the outcry of supposed demand for them; so, Mars reissued those figures and each time, the reissue stock sat for a very long time. The amount of ppl who claimed they would buy the figure(s) if only Mars would reissue did not equal the ppl who actually followed through causing stock to just sit around. Not to mention, once the reissues hit, you could get them much cheaper on the secondary market still brand new for cheaper than retailer pricing which made them sit even longer at retailers.
I think these 3rd Party companies have to/should really consider the pros and cons of reissues as I don't think it's as simple as seeing online chatter as that online chatter doesn't 100% convert to sales made.