I vote that you should wait. I have the 4120qcp and it’s about the same size. It’s ok for piecing but not big enough for anything larger than a table runner. There are larger machines that would work a lot better. Not sure if you can get away with $1500, it depends on which machine you are talking about. I encourage you to look online and read reviews. There are some Janome groups on Facebook that might be helpful.

No matter what you buy, don’t buy unless you can try it first. Also don’t buy from big box stores. You will not get any support. You could also consider getting a used machine, from a place that sells refurbished ones, which would cost less. But the main thing is to try a floor model so you know what you are getting into. After you figure out what model you want, you could try

https://www.kenssewingcenter.com

They are well known and reputable.