Well, the price is certainly right! If it's still ANYthing near as pretty as your video of yore, you've done very well indeed. Even though my tastes have always tended towards the British or mid-century German stuff, I've always had a sneaking admiration for that whole CB line of the '70s, with that CB400F Four and the earlier twin CB350s (particularly the gold and black ones of '71 and '72) never failing to press all my like buttons. They're just great-looking reliable no-drama bikes.
In their day in Britain the "400 Four" was pretty much regarded as THE mount to have for smaller gals or "vertically challenged" gentlemen who wanted to be able to get both feet firmly on the ground. For such diminutive folks the power-to-weight ratio of that silky-smooth little 400 was also more than adequate. Frankly, for anyone happy on a Bullet it will be too. Sure, many folks prefer the extra "oomph" of the 550s and 750s, but hey, if you don't want that 400, I'd give it a fine home. It's kinda like what, I think, crime novelist Raymond Chandler said about 45s: "If you have to use a 45, why not just use a pickaxe?" A 400 Four's got more than enough gumption to get you down the tarmac smartly. And if you have an adventurous ladyfriend who's maybe up for a little touring, well there's her mount. It and a Bullet wouldn't be too woeful a pairing on those Maine byways of yours, I'd say. Just try to keep the Bullet on lead.