$2000 is on the higher side, you must be visiting Dentist for the stars.
Root canal should be around $500 and a crown around $800.
Thats the problem of getting a root canal....if you're lucky, you can only need a filling afterward.
If you're not then you need a crown.
I had a root canal 2 monmths earlier.
I was lucky and only need a filling but he tells me I should get a crown because after the root canal, my tooth is very thin and it can break with the filling.
If it breaks, the tooth would have to be pulled.
It would have cost me $1300 total for the root and crown.