Whoa, Big Jim P!
Browning A-5 cycles slowly? Surely you jest!
Modern guns have many attributes that can be compared favorably to an old A-5 - for example, you can buy guns now that have multi-choke barrels, and that are made of lighter weight materials -very expensive alloys if you can afford it, plastic if you can't - with barrels that can fire steel shot. You can even buy camaflouged guns for what little thats worth. You can actually get some meaningful improvements too, like guns that are gas-operated with better ergonomics than an A-5 that don't batter the shooter like an A-5 does.
And yes, you can find faster cycling guns too, but not by much. See this hyperlink:
http://www.benelliusa.com/forum/showthread.php?t=8090
These stats are about 9 years old now and may be obsolete, but I still think that any cycling improvement you can find over the A-5 will be measured in hundredths of a second.
I think an old A-5 in good to excellent condition may be the second best value you can find in a automatic shotgun today. It's still a hell of a hunting gun and it's not likely to ever be worth much less than its worth today. It'll surely hold its value better than the greenbacks you buy them with will. (Conversely, an expensive new gun depreciates just like a new car. You walk out the door of a gun shop with a new $4,000 shotgun and lose $1,000 of value when you cross the threshold.) The best thing of all about an old A-5 is that the oldest examples are already entering an age where manufactured items start being viewed as antiques. When that happens they start going up in value again. Top end is anybodys guess. And what's a better buy than a $400-$500 browning A-5?
Well, I think a Remington Model 11 is a better buy and here's why. It's also an excellent hunting gun and is practically identical to an A-5, but can be found today in very good condition for $200. Therefore Model 11's have even less downside risk than A-5's. Also, many are approaching 100 years old. As "antiques" they will fall into a popular niche in the market called Americana. (Old A-5's won't. They were made in Belgium.)