I need some help in convincing my business partner.
We've got a very outdated website that is not mobile responsive on our .com domain. It's expensive to run and the main source of traffic is Google Places which is miniscule anyway.
I've built a new website using Shopify which reduces the running costs by 5x or more and is a great looking website. I know what I need to do to get the traffic to it.
But my business partner wants to keep the old site on the .com domain and have this new site listed on our .co.uk domain.
Personally I don't see any benefit in this as I would still need to go through the old website and remove/update a lot of stuff which increases time and also adds the running costs of the old website to the new one. I even think having the old site might damage the potential of the new site.
Can you guys give me some ammo that I can show my partner or if I'm in the wrong please let me know. I'm open minded but want to do this right.
Edit: forgot to add this is an ecommere website.