Extra virgin olive oil & canned whole Roma tomatoes

Not much.

I hear there's this new invention called the internet.

If I can find the register slip, I could tell you how much EVOO costs in Morelia, Mexico at Costco.

Roma tomatoes are very very cheap in the Pátzcuaro, Mexico mercado, I think about 7-10 pesos a kilo, but the tomatoes are nearly flavorless.
Recently, the Soriana chain opened a big supermarket here. They also sell round tomatoes, but I won't buy them as the are pale and nearly colorless.
Now I have found out where I can buy Italian tomato passata in glass jars. A bit pricey, but worth it. Also found terrific Progresso Brand canned crushed tomatoes. Better than fresh around here. All this comes at a price.

In Italy
Extra Virgin Olive Oil has very different price. You can start from 4 or 5 eur per litre. But the price can rise much over

I do not not what a Roma Tomato is.
Price for canned tomatoes depends on type and quality, if it just the tomato stored (after having the skinned removed, that are called in Italian "pelati") or a tomato that has pressed, or a tomato sauce already made and half or full prepared and cooked.
I do not have a ready idea of price (also because the size vhenge form one product to another product, so not very easy to remember). From what I see (see links below), prices can be from 1 to 3 eur/kg

See for instance this link form the supermarket Esselunga
Extra Virgin Olive Oil DOP
Extra Virgin Olive Oi
Pelati tomato

AnyFile, Roma tomatoes are also know as plum tomatoes. (does the plural of tomato have an e in it?) They are the oblong ones, not the round ones.

Roma tomatoes are also called plum tomatoes. Although "Roma" is a specific variety, many people call all such tomatoes "Romas." They are the oval tomatoes that are usually used in making processed tomatoes (canned, paste, premade sauces) or at home for sauces. San Marzano would be an example. In the US, Roma-type tomatoes are often sold fresh in supermarkets. In wintertime, they are sometimes sold as "salad tomatoes" or even "the brand name "Saladette" because they may be tastier that other off-season fresh tomatoes.

I'm curious how one could buy a kilo of olive oil. I just paid $US11 for 500 ml of olive oil. It's my mid range oil, the one I use for salads or for some cooking where the olive oil is important. My high end olive oil runs about twice that in price. That's the one I use to add flavor at the end of cooking or for certain salads. For instance, it's what I drizzle on the finest of summer tomatoes when I am serving them plain.

I used to use plain old "olive oil" for cooking, but now I use canola or peanut oil when I don't want flavor from the oil.

I assume you live in Italy, Nutrax'?....

At most Italian supermarkets, olive oil is a fair bit cheaper than in North America. I checked an online flyer for Di per Di supermarkets, and they have Bertoli olive oil on sale for EUR 3.89 this week. That's about $5.75 US. I think we would pay about $10 for a one-litre bottle of Bertoli olive oil here in Canada.

Tomatoes would vary greatly - I would imagine that the price you'd pay at an Italian grocery store would be nearly double the price you'd pay at a neighbourhood market. I'm basing that on my recollection of discovering that almonds cost more than ten times as much at the grocery store than at a market.