is it good idea to start big project with .app domain ?

i have some ideas , it think it is a big project .

The desired domain for .com tld is asking 5000$ .

But i may register .app domain for the same name .

is it bad idea to start with .app domain ?

All big web projects are .Com , what do think should i pay 5000$ and buy the .Com or go with .app ?


Poster :