A few points to make.
First, the whole "what if a car didnt work perfectly" doesnt really apply. The standard is what is acceptable in the ordinary course of the trade or business. For example, the law firm I work for represents several research facilities. They are constantly buying chemical reagents to facilitate their experiments. One in maybe three or four they buy simply doesnt work, and they have to find another one. This is detailed in the contracts; similar to Firaxis not selling without a EULA, the chemical companies wont sell without imdemnification, simply because, very like the computer industry, there are so many variables in the human / primate body that it cannot be expected to work perfectly all of the time. Similar to computers; there are different standards for different products.
Second, I do not understand the people who shell out $60 and do not take into account the fact that the risk isnt there. You sign an agreement agreeing to take the product as is. You sign an agreement agreeing not to holder the developer liable for their product. Civ IV is not a basic right, they can impose any terms they wish on the sale.
So, of course, your next statement is "Thats exactly what im saying! The gaming community needs to stand up and *demand* better quality!".
Alright, but at what cost? As it stands now, I do not mind shelling out $50-60 for games like Civ IV or AOE III; i buy 4-5 $50-60 games a year. This is acceptable, and the games seem to run on a majority of systems. Have you heard of the concept of diminishing returns? It tells us that as you invest more and more into something, you get less and less return. Meaning the first 1000 hours you spend testing, you'll find, say, 100 bugs. The next 1000 hours, since you've found alot of them already, you'll find considerably less for the same expense, and so on. I think it is completely unrealistic to expect prices to stay the same but for testing costs (which would be required to release a "perfect" game) to sky rocket.
To Eyes of Night, i suggest you get a clue before you genaralize an entire class of people as "scumbags". Furthermore, it exists in almost every other industry. I doubt any attorneys would "line up" to sue the game companies at all; all you could recover would be your $50 for the game (there is no damage to you personally). Also, there is a causation problem (how can you prove the game caused the problem? how can you prove its the games fault that it wont run?). Lastly, in every industry there are disclaimers of risk all the time. The computer indstury is by no means the only one to have it.
Bottom Line: lets keep games relatively cheap and not require too much.