The crack can easily and inexpensively be repaired. Actually, the entire set of steps can be inexpensively made like brand new. Step repair material and instructions are available.
Yes.
Parts could be replaced on a machine without replacing the entire machine.
No, not without replacing the entire sprinkler (and then the hole and feeding line would have to be deeper).
It is possible to replace the air conditioner clutch without replacing the entire compressor if you can find somewhere that sells just the clutch assembly and can get the appropriate tool to remove the pulley to get to the clutch. Try buying a repair manual and looking in there.
Yes. You should also replace the race at the same time.
You can cut the ends off of the wires and replace them with aftermarket ends. Check at your local parts store.
You can change the front wheel bearings on your 2000 Buick Regal without replacing the entire hub assembly. You can change each individual wheel bearing, if you choose.
no. the entire thing needs to be replaced
You will get compensated for replacement cost of your cracked sink. This will not cover the entire bathroom unless damage is done to more components of the bathroom.
No, a processor is not fixed to the motherboard. Most modern processors are designed to be easily removable and replaceable using a socket on the motherboard. This allows for easy upgrades or replacements without replacing the entire motherboard.
If it's cracked, sand, etc. will get into the joint and it will wear out and fail. As the link providing power to the wheels, failure of the CV joint will leave the vehicle undriveable when it fails. Depending on how much grit get into the joint, it may go a long time before failure, or it may not last long at all. Depending on your situation, you could tape up the hole or crack and wait until it goes out. Also, considering that replacing the boot can cost nearly as much as replacing the the entire halfshaft, replace the the entire halfshaft when you do it.
Recommending cracked software is not illegal in most countries, but using or downloading/uploading cracked software is. If possible, try to find some free software that does the same thing. For example, if you need to edit photos, you could use The GIMP (http://www.gimp.org) instead of a cracked version of Adobe Photoshop. If you need an entire operating system, try Ubuntu (http://www.ubuntu.com) or Debian (http://www.debian.org). Both of these programs are free as in freedom, meaning that you have the right to run, distribute, and modify them without any special permission. Just be sure to follow the license terms if you are going to redistribute.