Office suites can be expensive and use a lot of hard disk space and system memory.
Home users and small businesses may be better off with something slimmer and cheaper. Find out what's in the box. Just because you're a small business and the suite is a small business edition, it doesn't mean it will include everything you need. If you're intending to use e-mail, work out beforehand how this is going to happen. If you already have a client, you may need a complementary organiser.