Need top end advice

I'm just curious.. if you already have a 340 why build a 360 stroker? the 340 i think will do 416" and you already have the block?
Because I want to build something while I'm still driving my car. I'm a huge 340 fan but unfortunately , like anything else , they are so over priced that I just figured I'd build a 360 stroker that makes an impact. then when I swap it , I'll go to town and freshen up my 340.