Is $4500 about the going rate for Invisalign? Have a friend who just graduated from A&M and she is looking at braces/invisalign. Also if anyone has recs for someone in Dallas, she'd appreciate it.
Clear Correct is a brand of clear aligner therapy like Invisalign but a little cheaper. If your friend's case is not very difficult that is a good way to go. Invisalign has better customer support etc for if things are on track like they should be, etc. so better for more difficult cases.
Make sure you go to an orthodontist to get your Invisalign vs. a normal dentist. Either can fit you for the trays and monitor your progress, but only an ortho can put braces on if the trays don't completely correct the problem. Mine did so at no extra cost.