Doing Walk-Throughs to learn your target area

[Eugene Naroditskiy]

I've read a lot of posts from experienced investors, suggesting that a good way to learn your target area is to "walk through a 100 or so houses" to get an idea of what they look like, what the listing price is, what differences there are, etc.

My question is, wouldn't the fact that you're taking a realtor's time to walk-through a house simply to learn the area, without the intention of buying the house, sour your relationship with realtors in that area, some of whom you'll possibly need to work with in the future (for finding comps, cash buyers, etc)?