When RadioShack was closing its stores and having these crazy sales I remember buying the RS 800 by the fistfuls for $5 a piece thinking they were going to be gone forever.
There were a couple closeouts like this I took advantage of when RS was floundering. I grabbed about 8 or 10 of the "RS 800" antennas from a few of the area stores the week they were closed out, I went around to as many stores as I could to find them. I could have made a tidy profit by reselling them but gave them to a few friends who were not so lucky and kept a couple for myself.
Around the same time frame give or take a year RS closed out their version of the ST-2 scanner antenna, again for $5.00 each. I was able to find 3 of them and they went up into my attic. Later I bought another (real AntennaCraft branded) ST-2 from a friend and it joined its cousins. When I moved across the country I recovered these 4 antennas and they remain in my attic in my new house.
A few months later I got a call from a guy who knew me and worked for a RS store who told me that they found a half dozen of the RS version of the ST-2 in a warehouse and I could have them for the same $5.00 each. I said Thanks but no, I had no need for them. I have regretted that ever since, even moreso when I see the eBay prices they command these days.
After that I kept an eye out at various RS stores and dealers for either antenna. A few years ago when we were driving out to our new home with a car full of our clothes, computers and other stuff not to be trusted with the movers I came across a couple of the "RS 800" gathering dust on a shelf at a hardware store that had apparently been a RadioShack dealer back in the day out in rural Nebraska. I saw the old RS sign out front and stopped in for grins and giggles, the wife telling me not to buy anything.
I snatched those up for $9.95 each. He also had a few of the RS version of the AntennaCraft ST-3, basically a VHF quarterwave with UHF and 800 stubs sticking out, also for $9.95 each. The wife was not happy to see me coming out with a large bag full of stuff but the ST-3's are also in my attic along with the ST-2's. I still have the RS800's I got there but gave away a couple of my older ones.
The only one of the various versions of the Remtronix 800 MHz. antennas I never have had is the original SMA version. I have the SDS100 SMA version and that works fine on my BCD436HP. Before that I used the BNC version with an adapter, that worked just fine.