What is the difference?

Hi could someone tell me the difference between acrylic and fibre glass nails, I have heard that the glass ones cost more, is this cos they last longer? I really do not know the difference, what is it all the celebs wear? I definatley do not want gel ones as I did not get on with these last time what other types are there? What would you recommend I go for, I want them to look very celeb, very shiny, and to last as long as possible.

The majority of people, celebs included, still wear acrylic.  Acrylic is a liquid and powder that form a rigid nail and can be applied over a tip, free form scuplted onto the nail, or applied over your natural nail.  they can look very natural, IF done correctly, but you will find that a lot of people do not do them correctly and they can end up looking thick and fake.  Fiberglass, silk and linen are all under the category of "wraps".  A wrap is a piece of fabric that is glued onto the nail.  they can be applied on a tip or over the natural nail.  They are very thin and flexible, but not as durable as acrylic.  If people charge more for them it is usually because they do not like doing them!  Cost wise, there is no reason for them to charge more.  Gel nails are a gel - like hair gel - that is applied to the nail and hardened nder a light.  They are applied in several layers with each going under the lamp.  They are super shiney, lightweight and flexible and nearly as durable as acrylic.  They are completely odorless.

I agree with everything naildiva said, exept that wraps are not as durable as acrylics. I used to get wraps, and those things last forever. And since I got them over the nail, my nails kept growing super long under the wrap, and look so natural, because is your own nail, just with a super hard protecting layer over it. The placed I used was very reputable, but I have to say, I don't care if it is acrylic or wraps, they do weaken your nails and make them very thin. They did soaked them off when it was time to replace them, but the nails underneath, although super long, were paper thin. So I finally decided to stop doing it.

Naildiva is correct. But, I'd like to add that wraps, gel, liquid & powder are all acrylic nails in a different form.   
      

Chemically speaking, gels and acrylics are cousins - yes they are both in the acrylic family - methacrylates, to be exact.  Wraps are a very distant cousin - they are cyanoacrylates.  Wraps tend to be least allergenic because cyanoacrylates have a very simple chemical structure.  Not to bore you too much, but I just wanted to let you know that just because they are all a type of acrylic, doesnt mean they are the same!  Your technician should be able to tell you which one is best for your individual situation.