Our driveway has a lot of think cracks and several thick gouge-like cracks. It's a real eyesore. We're in the process of getting estimates. One guys says there's no need to replace the driveway and not to let anyone tell me its necessary. He says it just needs to be repaved. Another guy says that we should replace it, otherwise the cracks will appear within a few years time. Anyone have any advice? Thanks!