Perhaps another way to look at the decision Art is:
Am I one that want to spend more money...because I love to "gadget" with stuff?" It is a valid consideration. Many of us love to tinker, make, modify, and it is part of the fun of cooking for many. Others - just want to plug it in, and use it.
Therein may lie the only long term measurable difference in SV units. Sure, some have a WOW! or COOL! factor in appearance - or features...but because we are talking about a super-low-and-slow method, (which is so forgiving in that it is hard to over-cook mammal proteins...) I personally have found that the convenience of using devices I already own - as cooking vessels ( crock pots, roasters, fryer...) rather than purchase another cambro, or comparable insulated vessel - or a polycarbonate/temp resistant vessel, then cut, carve, insulate....i.e. - more time and more money.
But I do understand the fun that is generated from "modifying". We have all done this to various cooking tools we own.
My reference to a "sponsored product" is not meant to make anyone feel pressured to lean in that direction. It is purely that I see many of us ( self included) will often overlook an item that offers same or better performance - if it is not advertised well, or more visibly as on Amazon, or written up and used by ..."
Chefs
?"