Reli said:
The price guide is hardly a price guide. All it shows is one example of each model's sales price. You could do better by doing a simple search on Ebay that would pull up several examples of that model, not just one.
This happens to be my site. Actually, it has 37 sales for that specific model in the Price Guide, you just have to input it in the search - sharp gf 777
The sales come from ebay. Searching on ebay, you'll find the listing price, not what it sold for. And you'll only find a few, not 37. Only seeing 4 on ebay right now, one for almost $2200, another for almost $2500. And the price guide is just so people can get sort of a range of what they're selling for.
I'm keeping track of sales, update it each night with a few sales. Have plans to add more to the site in the future, old commericials, more listings for manufacturers, pages dedicated to specific boomboxes, like the Grails etc. Still brainstorming ideas on what to add.
"if you get it below 500 bucks, it should be good deal?"
Yes, if it's in relatively good shape and works, I think it's a good deal but ultimately it's up to you.
What's interesting is if you sort those 37 sales by price, you'll see people who have it set at Buy Now, tend to get higher prices. The 6 sales over $1,000 were all Buy Nows.