I have seen the Dyson V7 rechargeable vacuum on sale for under $500 recently and was quite tempted - we have an old Dyson Barrel Vac and it's pretty cumbersome and has lost a bit of its oomph in recent months. I like the convenience factor of the newer cordless Dysons, but am not keen on the high cost...
I know we are up to the V11 now, but sub-$500 vs upwards of $1100 is quite a difference, so I want to know...apart from run time - what are the real-world disadvantages of going with a V7 over a V8 or V10?