I myself was in the market for the rMBP, but ultimately I decided to get the non-retina MBP and just switch out the HDD for a SSD for reasons you listed here and more.
1. Yes, there are definitely software issues going around right now like graphical gltiches when waking from sleep and such.
2. There is no protective layer of glass like on the non-retina MBPs. This is to reduce glare and reduce thickness. I honestly wouldn't worry about that one too much. I never beat up my notebooks though, so it may be a concern to you.
3. All in the name of thinness I would presume. I'm sure Apple used a glue that could never possibly melt under any heat the MBP could produce.
4. You won't have to pay if you have a warranty. Repairs will definitely be tricky with this unit, and I don't think any genius is prepared to perform any at this time. I'm sure replacements will have to be the way to go at least for now.
I decided to not get the retina MBP because I just don't think the experience will ever be smooth this generation. Right now, applications look terrible on the rMBP, and we have to rely on the developers to update their resolutions. The list of applications that support the new resolution is small, and it should be because this technology was revealed a month ago. Developers have no real incentive to update right now because no one knows how successful the rMBP is going to be. I don't want to purchase the rMBP only to find that developers aren't updating their apps because there aren't enough users to warrant the time spent updating the app. Peruse these forums too to see the possible problems with rMBP and weigh out your choices. Support forums are obviously going to be flooded with people who have problems. We don't see the people who have had great experiences with the rMBP, and I'm sure there are many people out there who are completely satisfied so keep that in mind.
EDIT: Mountain Lion might be the answer to all of the software problems. Might want to wait until ML comes out and see what effects it has.
