I always personally appraise properties myself because I believe that I am better than 99.999999% of appraisers (unless it is a super expensive kind of niche property like appraising Apple's new donut-shaped office).

Also, if you have Netflix, sharing your Netflix account on a Roku or Apple TV is also a benefit you can offer.

I think you just aren't comparing apples to apples since they are in different geographic locations which can affect rates. 

So it isn't exactly apples to apples.  

Some seller concessions may not be in the best interest of the seller..for example if there are multiple equivalent strong or cash offers and do not include a seller concession, apples to apples and net result to seller, I would advise a seller to accept the offer with no concession.

I paid for a evaluator App from apple store.

I'm in my late 20's and a Mechanical Engineer at Apple. 

I agree that things change far too much and too fast to compare apples to apples. 

Its always the few bad apples that ruin it for all the other investors. 

Make sure you are comparing apples to apples.