Yes, I meant the DSOX12xx, almost certainly the DSOX1204A. I don't need the wavegen of the "G" model, but I want 4 channels for full SPI decoding (and I2S if it supports it) as well as general flexibility.
Well, I'd say the memory is way to short for what you want to use it for. 2Mpts (IIRC) which translates to 500kpts per channel in real usage scenarios. And even less if you add digital channels. In your case I'd consider looking at GW Instek, Siglent (hopefully they fix the memory management soon) or R&S; at least the recent models from these manufacturers have deep memory. I'm also not convinced that Keysight's UI is that spectacular. I used to own an older model but setting up decoding or anything special like math was really clumsy. At least buy a Keysight model with a touchscreen so you don't need to use the buttons below the screen and the selector knob.
Resale value is highly overrated. Test equipment devaluates faster than a car.
The datasheet says 2M depth per channel for one- or half-channel operation, and 1M depth per channel otherwise. Sure, more would be better, but 1M is enough for me I think.
Yeah, I'd like a touchscreen scope, but that's the KS 2xxx series or above, which are (a lot) more money, and in the case of the DSOX2xxx, barely better specs than the DSOX12xxx scopes these days. I can't justify the additional cost.
Not sure why you say resale is overrated. KS scopes may or may not "devaluate faster than a car" (a 5 year old scope would be perhaps 50% of its original cost?), but I have yet to see in a few months of looking a completed EBay sale where a recent KS scope in good condition, with similar capabilities and with probes, has been sold at a price that would make it attractive compared to a new DSOX1204A. I'm sure that has happened, but I haven't seen it. Note that I don't want a "too old" KS/Agilent scope because I want the modern features (serial decode especially) and I want a physically small scope due to space limitations at home.