The Morimoto/Diode Dynamics stuff is identical, literally the exact same product, and Morimoto, like Mishimoto, is an old eBay special made-in-china company that spends a lot on marketing and has a Japanese-sounding name to give their products the appearance of quality. Diode Dynamics' LED offerings, their bread and butter, are all great, never had a problem with any of their products in any of my cars, but those rebadged Morimoto fogs are booty - they don't function well as fog lights OR driving lights, they're just for cosmetics. If you want a cosmetic mod then go for it, but as functional lights they're not great.
All told, I don't think you're going to find something worth a dang at a low price point. The RallyInnovations guys seem to know what they're talking about and I've heard good things about their products from people who've run them in a motorsports capacity, though of course those are different conditions than driving on a public road. Those are likely the best "bang for your buck" though they are over $150.
Otherwise, find a totaled-out FCA product from recent years with the LED fogs, yank 'em out and fab up a bracket, like your crazy pal Xan is thinking about doing.