Wood or Plastic Seminar Tables?

As the head of the office administration, I have to decide on the office renovation plans because we are setting up a larger workplace for our staff and employees. The budget is on hand and we have some of the equipments we need. On the other hand, we haven't decided what to get for our seminar tables, training tables and other office stuff. I was thinking to go all wood, but I thought it is sort of expensive if we take that idea. A suggestion was given to me that we should try getting plastic or fiber gl seminar tables and training tables the fact that it's cheap but durable. What do you think? What should we get - talk about quality, durability and toughness? Thanks in advance!