what does the quote for liquid damage actually cover?

I didn't try to perform any tasks on it to check its performance. I noticed it looked wet and when I touched it felt the liquid. when I opened the lid the screen had obvious liquid marks inside it. I did actually call apple back today so I could get a more clear answer. The quote supposedly covers a $100 labor fee, the display, the ssd enclosed parts like cd drives (which mine doesn't have) and other common parts damaged by liquid. It doesn't cover the logic board. I know Apple charges somewhere around the $800 mark for those. If it has to be replaced in looking at a total of approx. $1400 for the repair. Brand new four months ago the cost was $1800. I'm a recent convert to Apple. My brother is a tech guru and has spent 30 yrs repairing and building computers. He always warned me against an Apple computer as their repair tools, diagnostic programs and what not are proprietary. Therefore what should be an inexpensive fix usually costs three times, if not more, what it would anywhere else. He's always been of the opinion that they do so to put the repair close enough to the cost of a new machine that people will just buy another Instead of get a repair. I have looked into alternative third party repair shops but the one that initially looked the best has a terms of service and caveats that make me nervous. I'm contemplating just buying the screen assembly, the appropriate isopropyl solution and a logic board (just in case) and doing it myself. when it was a month old the software corrupted and it had to be serviced. At three months old the fan started grinding/clunking and it had to be replaced. Now it's four months old. Granted, this issue is not a problem with the product. It's my screw up. Yet I once dropped my Microsoft Sony Vaio into a pool and it ran me $400 to have it repaired to like new, motherboard included. I'm not sure where I am with it right now. Call it a day and switch back to the more serviceable Microsoft machines or bite the bullet. I don't mind paying several hundred for convenience and not having to do it myself, not to mention peace of mind that they will do it properly. I do mind reading that the repair could potentially match the full retail cost and still won't return it to warranty status. like I said, not sure where I am with it.

**Update

so I've spent the last 9 hours or so calling third party repair centers. Anyone looking into this option be very careful. I found one center that sounded nice and simple and affordable. I was right at the verge of sending it off when I remembered I hadn't checked the BBB. They had a horrible rating for taking people's money and either taking months to complete repairs, never doing the repairs or sending machines back with smaller drives and what not. Then I went through and individually priced all of the parts. Although it would be a teeny bit cheaper to do myself, it's not enough of a difference to justify doing so. In the end I've decided to just send it back in to Apple for repair. I'm sick with it. Hopefully the logic board isn't damaged. If it's at cost of a new machine I'm just going to switch back to Microsoft based laptops.