I'm kinda in the same boat wondering if it's worth doing the conversion. Only other attachment I want (so far) is forks for loader. What I have seen is most conversions run about $750. And once converted now the original bucket needs to have work done to it or replaced. May just have something fabricated to work with existing (yanmar quick connect).
I guess it comes down to how many attachments in all you really need for the front. If only one or two it may not be worth the cost of conversion. Just my 2cents.