endo (root canal) on a front tooth will run you 400-800 by a reputable dentist. a molar, due to its difficult access and multiple roots and therefore canal will run you 800-1200 at the most. 1500 is way too much for a single molar endo unless you meant that was the total bill for multiple teeth. What sucks is that you will need a crown after the endo which will run you up to 1k more!
Yes, an extraction, even a difficult one, under light sedation will run you up to 500 for an impacted third molar (wisdom tooth) to as little as 75 by uncle willy at the general store. The only problem is that you will need a replacement for that tooth. YOu could go toothless, but if you re willing to spend cash to make sure your biceps stay larger than 15" year round, you really should spend some dough so that you dont look like my toothless granny. Replacement cost vary depending on what you do:
a flipper or removable denture for one to about 3 teeth: @500-1k
a bridge- fake tooth glued onto adjacent healthy teeth: 800-3k
an implant- titanium screw with fake tooth attached: 1k for the implant and 800-1200 for the tooth.
Yes it sucks, its expensive, and any of the above choices may fail. But youre young. Let it go and you'll have to deal with the prob at some date when your body will be less able to recover with more moderate treatment.
Just my 2cents