Picking the perfect sewing machine

About 13 years ago my mom bought me my first sewing machine.It's a basic Kenmore from Sears.You can see it here in my craft closet that my husband built me.It works great when it isn't working and just sitting in my work space, but when I have to use it, I remember every time why I need a new machine.I kept up with yearly tune ups when I first got it, but once the three  year warranty wore out, I stopped getting the machine maintained.  I took it in once to be fixed and it cost me $85 for a new bobbin casing.  I should have bought a new machine rather than invest in fixing it.Recently while shopping for a new machine, I was told by a salesperson that sewing machines have a shelf life of 10-15 years.  If that's true, then this baby has hit her shelf life and she needs replaced!Sometimes I think that I would like a fancy sewing machine with embroidery stitching and computer programming, but then the reality sets in and I realize that over the years I have become a creature of habit.  I like my machine to thread a certain way, I like to see the bobbin in it's case and I need about three different stitches on a good day.What I do know that I want is something that will stand the test of time.A machine that will last for decades and not need replacing every ten years.A machine that will stitch through thick fabrics and then turn around and stitch up thin cotton.A machine that doesn't need me to mess with the tension every time I use it.A machine that is basic enough that I can sit in there with a screw driver and some patience and fix it if it gets stuck.Nothing fancy.So the hunt starts.Here are the few that I have been looking at and have narrowed down.Husgvarna Viking Emerald 118Cost: around $350Pros: basic, very good at thick fabric, good reputation, handy tension chart, needle threaderCons: not great at sheers, maybe too basic?Janome HD3000Cost: around $350Pros: solid construction, strong reputation as a workhorse, heavy duty, good with thick fabricCons: not great reviews for the needle threaderBrother HC1850Cost: around $250Pros: top rated sewing machine on Amazon.com, many of the same features (sewing speed, 130 stitches, monogramming   that are in much more pricey machines but at a fraction of the price, good for the casual seamstressCons: doesn't have a reputation that it is meant to last, meant to be a basic machine and may be "outgrown"I did look into Pfaff machines but I am told there is a learning curve since they function in a very specific way.  I'm not ruling it out because lots of people have said they love their Pfaff, but I'm narrowing down my options unless I get a strong argument to reconsider.Any other recommendations?Any machines I should look at and consider?I'm not being compensated by any of these companies.  This is my own research.  If any of these companies would like to contact me and give me a machine to review I wouldn't be against it!