I have a 'friend', let's call him Dave. Now let's say that one day Dave walks into a yardsale and sees Market Street, Cafe Corner and Green Grocer sitting right there in front of him and the seller only wants $300 per modular, each is 100% compete except for the box and instructions. Dave is obviously desperate to buy all three (he doesn't own any of them) but he only has $300 to spend.
My questions to you are - which modular does it make more sense for Dave to buy? Does one have more rare parts that Dave would have trouble finding if he were to Bricklink any of these sets? Is one set as a whole rarer than the others? I know some people dislike some of these older modulars, but please ignore your bias in terms of their appearance and answer purely based on their worth, taking into account the questions regarding rarity and unique/discontinued parts.
My friend 'Dave' is looking forward to reading your opinions on this!