So what does it take?
We've discussed particular seller's good and bad points over time, but, generically, for any prospective seller to get and/or keep your business, what does it take?
- For example, is it mostly that a particular seller has exactly what you want to buy, consistently?
- Is Pricing or Material/Stock more important? (yea I know both matter

)
- Do you have to like them personally?
- Do they have to have a solid online presence?
- Do they have to be knowledgeable?
ebay, Hipstamp, and Stamp Auction Network, are venues, and not sellers, themselves. So, as a follow-up, do you typically stick to a small group of sellers that you buy from, or are you constantly buying from different sellers via the same venue, or venues? For example, on ebay/hipstamp or SAN, do you use the venue, but then just purchase from whomever has the material you want, or are you picky about who you buy from?
I thought of this topic, as I've actually quite consciously mostly kept my dealings to a relatively small set of sellers in recent years. My list is spread across a small number of auction houses, and a small number of dealers. Many years ago, however, I used to buy a lot on
ebay. I would buy from almost anyone who had a stamp that it looked like I needed. Of course I would check their feedback, and such, but, mostly, I just bought from whomever back then. This was circa year 2000. It was the same at in-person stamp shows - if the dealer had what I wanted, I'd buy. There were a few semi-hostile dealer personalities back then who I would usually give a wide berth to, but outside of that ...
Now, I find that I don't have to have any and every stamp, but, I'm content with whatever I can get, and I just don't want hassles in dealing with sellers. I deal with sellers I trust, and who have proven themselves to be knowledgeable, so that I can have some confidence in their descriptions, and who are clockwork reliable in terms of how they mail material.
What are your thoughts?
edit: I sound like a shill for ASDA or similar, but I'm just curious.