Why should you have a desk in your home? One reason would be to help keep things organized. You receive bills every month. Where do they get placed? Do you have a system? With a desk you could organize one drawer to place those bills in before paying them and then file after they are paid.
The style of desk will determine which chores can or cannot be done every month with the piece of furniture. If you have one that is for a computer there may not be a place to do any other work. It may only be for a place to put your monitor and computer paraphernalia. You will do well if there is also a place to write in case you want to take notes while you are on the computer.
Most homes these days have a desktop computer and a desk to place the monitor on is almost an essential. You can use other places to put the monitor but it may not be as comfortable as having the proper set up that a computer unit would give you. Some of the computer desks are adjustable for heights to make them more comfortable to sit at. However they may not offer the extra space for writing and doing other office duties.
You may want to have a unit for your computer as well as one for everyday things like bills. That way you can sit at one for the computer and the other one for office work. If there is the space to do this, that would be the ideal way to go. The computer desk can be one of the types that only has space for your monitor therefore not taking up a lot of space in your room.
On the other hand, as many people these days are working online, a multi-tasking desk may be what you are looking for. There are corner units that offer the space for the monitor and space to work that also have drawers. There are also units that have credenzas to match giving you a lot of extra filing space. This would work well if you do have an online business.
Your decision may be made by how much space you have to use for this purpose. If your home has a room just for this use, then you could get one of the larger units. However if space is limited you may need to place a small unit in a corner and place the monitor on it.
Another factor on your decision may be the cost. If a budget is in the mix shop around. Online stores tend to offer better prices than offline but you have to consider shipping costs. If a local store has an online presence also, sometimes you can get their online sales, and then ask to be able to pick it up to save shipping costs.
Purchasing a desk for your home is an investment so take your time and compare the offers. Look for the best deal all the way around. Consider how long something may last and what you want to use it for. Look at all the angles before you purchase so you can make an informed decision. Then enjoy your purchase.