Would the dentist go for this?

I have a space between my two front teeth and
a new dentist bonded them for now because I
decided to get veneers put on them. I have an
appointment Feb 24 to start the procedure and pay
the $1047.00. Right now the bonding he did doesn’t
look too bad and I would like to put this procedure
off until this bonding breaks..then I would get the
veneers. I just don’t want to shell out $1000.00 right
now when I am happy with what he did. Also wondering
if I wait can I still get the cost he quoted me while I was
there. What would you do or say to the dentist?