That said, our options are to either spend two full days in London (not counting the travel days on

My wife and I will be in Europe this summer for a long trip that includes Ireland and the Amalfi Coast as the highlights. We've found that getting from Ireland down to Italy is actually cheaper if we make some stops at some of the big cities along the way, which had already interested budget hotels paris france us so we've set aside a few days.
Let me start by saying that I know the time allotted here is nowhere near the time needed to do these cities right. We're still young (30) so we'll be back to Europe to spend more time in them, though probably not any time very soon.
That said, our options are to either spend two full days in London (not counting the travel days on each end), or to add another day and spend one full day in London and another in Paris, again not counting travel days. Additionally, instead of Paris we could do Venice for about the same price. We've been to Venice budget hotels paris france but only for a day and it was cold, rainy, and flooded (November) so we didn't really get to experience it. London and Paris we've never been to.
I would just do London...it will give you enough time to see a few sites and get a feel. Adding Paris or Venice will add cost, and you won't really get to see much given the time effort and cost of getting there.
To me it is really hard to answer without knowing how much cheaper (are you factoring in the cost of transport to and from the airports for the two of you?) and how long you will be in Ireland and the Amalfi.
Another factor in my mind is how lightly you will packing and how easily you handle hotel changes, both in terms of sleeping and being organized. Apparently a lot of people need half a day to check in and out of a hotel, and if you fall into that category budget hotels paris france of traveler, than obviously you should limit the number of places you go.
Most of all, is there something in particular that you want to see in any of these cities? Because unless you get on a tour bus, you will only have time for a small handful budget hotels paris france of venues. If you are the kind of travelers budget hotels paris france who prefer to meander from cafe to cafe and taking picturesque strolls, soaking up the atmosphere, as opposed to choosing a destination because you've always been dying to see Ste Chappelle budget hotels paris france or the Rosetta Stone or you were so sad you missed the Titian in Venice, than you are looking at a lot of travel hassle just to spend 8 hours milling budget hotels paris france around. I don't think you'll absorb much for the effort.
budget hotels paris france Whirlwind stops in fabulous places can be extravagant fun if you pick out a just a few fabulous things to do to fill a day and limit yourself to that, along with nice meals and an evening treat. Otherwise, they feel like drive bys.
We'll be in Ireland for 11 days and the Amalfi coast for 6-7 days (depending on what we decide to do here). We'll be traveling fairly light, washing clothes in our hotel sink, etc. Packing/unpacking won't be a huge ordeal.
budget hotels paris france As far as cost goes, it's not significantly cheaper to add Paris, and with the additional airport cab fees it will probably be a wash. I think I worded it poorly in the original post. We wouldn't be doing this to save money, but rather doing it because we'd have the opportunity to see another city without really adding any significant cost to our trip.
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