I don't mind paying more than $20 for an optibay as long as its good quality as I rely on my MacBook Pro as my primary work tool. Spend $20 if you like - my data is worth way more than that to me, I bought an OWC data doubler its super good quality and supports Sata 6GB which I'm sure a $20 piece of eBay junk will not.
Your comment of "you're doing it wrong" is the sort of thing my uncle who does everything on the cheap/dodgy would be proud of. Personally I think you're doing it wrong when you try to be a cheap bastard - Your Macs not cheap so why the **** would you use cheapass parts inside it?
lol.
I don't think you understand what the component is if you think you need to spend more than $20.
There are no advanced parts involved. Simply a piece of metal that can hold your HDD/SSD and SATA connector.
It's like saying, "I don't mind paying $200 for an HDMI cable as long as it is good quality because I rely on my monitor as my primary work tool." Sure there are people who will sell you a $200 cable, but if you understand the technology then you know why you shouldn't spend more than $10 on an HDMI cable.
Now, based on your defensiveness (very apparent) it sounds like you already spent more than $20 and your ego needs to feel alright just as the sucker who bought Monster/Chocolate HDMI cables needs to believe that he's seeing a better picture than the people who spent $6. I cannot provide that feel-good moment for you because it'd be a lie. But I can offer the truth: $20 is the maximum you should spend.
You're getting no more reliability from a $40-$60 bay caddy than from a $5-$20 caddy. The less expensive caddy would not have prevented the 6GBs data rate.
If you spent more to feel better or "secure", understand you spent $20-$40 more than you had to in order to have that "feeling"; not because it was necessary or beneficial.
Sorry if the truth that you overspent bothers you. Consider it a lesson learned. Lots of people bought Monster HDMI Cables before learning their lesson.
FWIW, I actually had my father return 2 sets of Chocolate HDMI cables ($250 per) because the salesman had convinced him that he needed them to view 3D programming and that's just how much those kinds of cables cost. I took him to monoprice the next day and had those cables returned by the end of the week. Also, I too overpaid by about $15 for my bay caddy. I felt like an idiot...but that was before I knew about all the other options out there available at Buy.com, Amazon.com and eBay. If I had known, I wouldn't have made the mistake. As such, I feel its important to let other people know so that they don't waste their money unnecessarily. Perhaps you, by contrast, feels justified when you overpay by convincing others to waste the same amount of money...but I find that a very selfish motive.
Try not to take things so personally. You don't work for OWC. Perhaps you made a small mistake in paying a little too much for a caddy, but $20 wasted shouldn't send you into rants. Maybe $2,000, but not $20. Get your life together.