This one's a response to mjsylvstr - I can only vouch for myself, but yes, my 160 is wonderful! Haven't had one problem with it yet, and the ease of use factor is just fantastic. These are actually the first two machines I've ever owned that have a needle threader which works ALL the time!
I'm also surprised at how much the prices have increased for this machine, especially on eBay, where I have seen them actually sold (by checking the completed auctions) for around $1,000. I imagine it's because they were only produced in 2012, for Singer's anniversary, and supposedly there were a limited number of them made. The money factor is tempting (because I paid under $400 for the machine when I bought it), but I'm not going to let her go!