ok here's the deal, from the looks of the picture, your table is about
42"x80" x 3/8" thick w/ a 1"bevel on the edges. the replacement cost for this is probably in the area of $500.00 - $600.00 from a local glass company, depending where you live. there is no need for tempered glass but the 3/8" thickness is very important, since it is free standing. if you want to save a few $$$ there is no need to get the 1" bevel, you can get a very nice High Polished edge instead.anyone who is charging $100-$200 for deliver is a thief....delivery for this is should only be about $75.00. usually if you have a glass company come out to your house to measure the broken top and get the size right to where you want it, delivery fees would/could be waived. that may be negotiable for your area, i don't know where you live. with something like this, there really isn't an installation just a quick clean and place on the table base. if that is really your table in the picture or something similar you like, then i'd say buy the new table and have the extra chairs and save a few $$$.
good luck,
mike.............