I’m pretty sure it’s a no brainer. It’s the same case with people who know how to do an SR swap by themselves, they probably won’t pay a shop $2000 to get it installed for them unless they just don’t want to deal with the hassle.
$2000 might be a lot of money but for some people, it’s worth it if they don’t have to spend countless hours sourcing parts and fabricating headers, mounts, etc. Keep in mind someone must have the tools and the shop space to begin with.