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To the total estimated cost of seven billion CHF, about two billion ought to be added for the four detectors (on the basis of the cost of the LHC detectors). This total cost can be related to the Physics case of the collider -- the main topic of this note -- by inferring the cost of each Higgs boson. From the statistics expected after five years of data taking at $\sqrt{s} = 240$ GeV (Section~\ref{sec:Higgs}), each Higgs boson would amount to 4,500~CHF, to be compared with 150,000~\$ at the ILC (not including the cost of the site and the infrastructure). The cost of a TLEP Higgs boson further decreases by a factor three if the price is determined without the items needed anyway for the CERN's Energy Frontier 100TeV pp collider project, VHE-LHC - namely the tunnel, the tunnel services, and the magnets (which would be used for the VHE-LHC injector).  The length of the tunnel will be optimised on the basis of geological and accessibility criteria. For example, a tunnel of 100 km (shown in Fig.~\ref{fig:TLEP80}) might not be more expensive than the 80-km version, the price estimate of which is given in Table~\ref{tab:cost}. Indeed, a 100-km tunnel would avoid the limestone areas in the vicinity of the Saleve mountain (more difficult to dig), and might not require digging either challenging 1-km-deep shafts or a 30-km bypass tunnel needed to access the caverns underneath the Saleve mountain (Fig.~\ref{fig:Profile80}). With such a tunnel, the physics case would be enhanced with a 20\% larger luminosity at all centre-of-mass energies, and it is possible to increase the maximum centre-of-mass energy by 5\% (to 370 GeV), 5\%,  should there be an interest to do so.