Resale on a Kubota hoe on a Kubota tractor is higher than, say a Woods hoe on a Kubota tractor. Generally speaking. I hear it all the time "well I don't plan on selling it"....and 5 years down the road they want/need a bigger tractor. Using the Kubota hoe will also help your trade-in value....
Plus the BH70 actually fits, and fits like it's supposed to. No drilling holes or adjusting subframes to line up, and the Kubota hoe's subframes allow you to use the 3 point hitch without removing the subframes. And the subframes on the BH70 don't hang so low on the tractor that you're hitting everything. And you can finance the BH70 through Kubota, with KTAC insurance if desired-a win-win, IMO.