I didn’t determine that they are higher quality, nor would I, I am not even sure how that could be determined. But I do know that they are high quality. Seahorse source is an outstanding company and I agree, they also have a high quality product, great customer service, and a great reputation. I recommend them to folks locally quite frequently.
That being said, I wasn’t answering a question about seahorsesource since it wasn't asked. I was answering the question that was asked about ocean rider. Please don't misunderstand me or put words in my mouth; it was not a comparison, but the experience that was asked for in the OP.
As far as the cost piece goes, if you keep an eye on it and buy when there are sales, cost is quite comparable between the companies (like now, for example $72.50 at one with free shipping, and $64.95 at the other for four SHs). Most of the time OR is significantly higher priced, though.