There is an even more intimate level of integration possible if J River and Arcsoft/Corel can strike up a mutually beneficial, and I believe technically straghtforward "partnership". Jmone referred to this frequently in the thread you linked.
I read those threads after I posted, very interesting. I fully agree that native BD support by MC would be a rough road to take, while further integration with TMT would be a very efficient path to BD support, yielding basically the same results without the programming load native support would require.
I'm a lot like glynor, having ripped (or recorded) 99.9% of my source material to a server, using clients to access it in my office, bedroom and livingroom. For me, Bluray is worth the space for special movies, and DVDs are ok for most. I very seldom play a physical Bluray disc, but it's nice to be able to do so with TMT3. I use DVD Fab to rip the few Blurays I have.
To me, it was worth $50 for DVD Fab (plus another $45 for a 2 year subscription for BD support), $80 for TMT3 and the $50 for MC is the best money I've spent (MC really pulls this together elegently).