For me, MP is the main reason that I believe in Open Source!why? because i don't believe in open source philosophy... for me a good example of the open source problems are here, in MP....
I find it very strange that you choose to use MP as HTPC-software, and not believe in Open Source.
Obviously you choose MP because it is the best product for you needs. These "needs" (functions, price or whatever) have been fulfilled BECAUSE MP is a Open Source project, not despite.
If it had not been Open Source - MP would probably never be as great as it most certainly is!