Yashica T-Zoom aka Yashica T4-Zoom, Kyocera T-Zoom, T4-zoom

Welcome to the forum, holden75 ...

I think it might be more of of a matter of perspective and opinion, than strictly what one might get in value for the money with any repair, on any model and any brand. There's also the recent state of camera repairability and the number of competent repair depots, the availability of parts on obsolete brands, and especially the lack of 'new' OEM spare parts altogether when you need 'unworn' and fresh parts. Another aspect of the value is in what warranty you'd be given, and what the time and repair terms would be. If there's no warranty at all, or something unusually small - say, 30/60/90 days - I personally would see zero value, no matter what the price tag was.

There's also a question of what your needs and expectation are, and the type of results you need on film, and if there's an alternative that would meet them. There's also a question about whether it's for your own long term ownership and how much use you'd get from it, versus a fix and flip to get some quick profit. For longtime use, it may boil down to identifying the specific need you have, and whether it's worth the cost - compared to buying a working model of equal quality for the same or lesser amount of the quoted repair price.

If that's a more attractive option, there are several late model film cameras in the same general price range, like the Konica Big Mini F, down to a Nikon L35AF. There are several of the 'modern' Point-and-Shoot cameras in the under $200 range from Yashica and others that won't give you celebrity sticker shock to buy them in fully working condition, and they'll be exceptional performers for their intended audience too.

I know that's not the answer you may have been looking for, but it's difficult to offer anything more definitive on a subjective question.