Agreed, if you migrate over, you could break something and spend more money/time/downtime trying to fix it.

It depends upon the website requirement, well if you want security then dedicated is best for that, well mostly people uses vps hosting.

Regards,
Raicol

Websites which conent is about heavy database or CPU usage. Search engines, educational websites and organizational domains where lots of traffic is generated.

Ya overall requirement would matter. The deals these days it is better to go with dedicated anyway if you can manage them, simply then for almost the same price you can establish and create many of your personal VPServers.

The price gap is narrowing between VPS and dedicated. A couple of key points - your ability to manage either, and your projected growth. A lot of companies will never outgrow a VPS.

I would agree with the statement most companies never out grow there VPS.

If you are a company that requires a lot of space a dedicated server is the way to go.

You will know when to move to dedicated, but the better question is if you want to rather buy a second VPS or rather consolidate everything to a dedicated server.

The choice remains yours, both have there pros and cons. It is not an easy question to answer because neither choices are worse than the other if done correctly

To me is a matter that has to do with Clients rather than profit

Unfortunately, everything revolves around profit. Unless you have deep pockets, you can't run a sinking ship forever.

Firstly you should start with vps. When your customers increasing, you can buy dedicated server.

At any point of time a dedicated server is better compared to a VPS. The main dis-advantage of a VPS is that, in some cases the CPU of the main server is not equally shared between all the hosted VPS. But the decision of choosing a VPS or a dedicated server depends on your requirements.

Yes, the decision off choosing depends on the requirements. Both come with Root Access and with a privilege to install any 3rd party application.

If you need 100% Uptime guarantee, Dedicated Server is a way to go

A Virtual Private Server hosting plan is aimed at users who require SSH or root access to the server and users who need a guaranteed amount of RAM and processor speed. You are still sharing the server space with a VPS plan; however, you are only sharing the server with 20-25 other people. Be cautious in choosing the right cheap VPS hosting provider, as many unknown hosts will attempt to pack too many customers on one VPS server. Our recommended Dedicated hosting provider offers VPS hosting plan for under $40/month and offers guaranteed 512MB RAM.

A Dedicated Server Hosting Plan is aimed at customers who not only require SSH access and guaranteed RAM but who do not want to share the server space and processor with any other users. Dedicated server hosting is best for bandwidth intense, high storage, and extreme resource websites. Game servers, websites that make the front page of Digg or other popular social networking sites, resellers, web designers, and even web hosts.

100% uptime guarantee? That's nearly impossible.. Datacenters just have a SLA where they'll state that your account will be credited in case of any downtime.

A VPS can just be as reliable as a dedicated server. If there is an active support team managing the servers properly, I don't see any problems.

Whether you are using VPS or Dedicated, you should have two or more in case you lose one.

Once you go dedicated, there's no going back!