You have a question in your mind what is cross cut.From the name that too clear a shredder which cut the paper in cross way.As cutting cross way so crosscut shredders are able to provide more security by cutting paper vertically and horizontally into a small zic zag pieces.More security means more complex technology which makes the cost of crosscut costly.The maintenance required more for cross cut shredder.
But definitely that more secure.Look at the image the concept will be more clear.

here you can compare the cutting output for cross cut and strip cut.The left one is cross cut.You cannot find the paper content.Its like a rubbish.Some time rubbish kind of output are good as the term of security.On the other hand the strip cut paper are just cutted in the strip way.From the image i can read some of the content what on the paper.(though that cutted in horizontally).

Most of the shredder come with cross cut shredder.So secure things will take more charge.Different model of cross cut are differentiate by the cutting size and number of shredding paper basis.

paper shredding business is  not bad at all as an main stream business.Where paper shredder manufacturer are earn in million there distributor are choose it as a side product among there other product like binders,currency converting machine,cutter,trmmer etc.I have seen more or less every office stationary shop keep that product for sale.Reason paper shredding machine becomes not only b2b product even the b2c also.Now a days people are keep a shredder in their house beside their office to shrade useless paper.Paper shredding business are really a marginable business.Though lot of company are trying to sell that product onlne yet maximum of office staff like to purchase that machine from local paper shredding business or shoppe or company.

On the other hand lot of paper shredding business are there who take that work as peofessionally.Specially called them as document shredder company.They shred huge amount of data(paper,cd,harddisk,floppy,credit card,other type of card,dvd etc) using there industrial shredding machine.As small shredder machine(office shredder) comes in maximum of office so their business requirement are now going less.