M50 vs M20.. for boost. whats your opinion?

[MT325is]

i pretty much "know" i wanna do the m20, but i mean what does the m50/52 have to gain that i might want in the future?
Personally dont see the point of spending money on a swap when both engines are going to be built...

Although one benifit i can think of off the top of my head is the m engines come with the chain already:)

[ak-]

m52, shit on both for cheap.

[einstein57]

M20 = cheaper, easier, more reliable
M50 = higher hp capabilities, better fuel economy

[Killacortes]

Your already gonna re build either why not just boost the m20!

[MT325is]

Hey guys, I am starting to think about engines... that best part of the project right? I love boost, and have decided that is the route i want to go, i will do a full rebuild rods, pistons, cam, port head, etc.... The question is in the end.. which one will be better? Is it even worth to buy the m50 and then build, swap, boost it? Or am i fine with the m20? What are the + and - of them both?
Thanks ahead of time.