I can think of a few, actually ...
<span style="font-family: trebuchet ms,geneva;">1. My Mom's Kirby 511 and Hoover Convertible U4005</span>
<span style="font-family: trebuchet ms,geneva;">2. My Grandma's Eureka Easy Glide 210A</span>
<span style="font-family: trebuchet ms,geneva;">3. My Eureka Emperor 1212A (and its Panasonic counterpart) -- got rid of both of 'em due to lack of parts</span>
<span style="font-family: trebuchet ms,geneva;">4. My Hoover Convertible 69</span>
<span style="font-family: trebuchet ms,geneva;">5. A General Electric Upright that I had (I think it was a U7 but not sure)</span>
<span style="font-family: trebuchet ms,geneva;">6. My Premier U8 and my Singer Golden PowerMASTER (both of which I got rid of when I was much, much younger and not yet a collector!)</span>
<span style="font-family: trebuchet ms,geneva;">I could go on ... but I'm gonna stop otherwise I'm gonna run out of tissues!</span>