the 1000 comes with rg58 coax, and will usualy tune in at 70 ohms on the mfj. also the 1000 half the time needs the 66 in stinger. which is another 20 bucks.
the 5000 comes with 8x coax, uses the 62 in stinger, and then usualy tunes shorter. no need for a different stinger. and will tune in at 50 ohms.
the 1000 needs the 66 in stinger, is 99% of the time shipped with the 62 in stinger. if it dont work, you buy the stinger, now your total cost is over that of the 5000, and still wont tune as well on the mfj, it will still be at 70 ohms.
those of you whos finger is itching to type some lip service, dont wast anyones time if your using a basic swr meter on how they tune. you dont have enough info.