I don't expect support from them for cheap, used hardware. They took over IBM's PC business, and in fact we're building IBMs before that, and so was Acer.
Side note, did you ever have to negotiate the IBM website? Freaking vast. Google was faster, would take you the page you wanted.
Update for my first real Marshall in 30 years:
Used 2525C Mini Jubilee Combo. I'd post a pic but Android doesn't make that easy. Picture in your mind a 20" x 20" silver box with knobs on the chrome panel and a Marshall logo on the grill cloth.
I have the DSL1HR and the Blackstar HT-1R. I like them both, and I bought the Blackstar for a stupid low price from Cosmo Music. The Mk II is cheaper than the discontinued Mk I.
They are similar amps except the HT has some solid state preamp gain, I believe. I replaced V1 in the DSL with a 12AT7...
It was just there. Picked it up and had a look. No marks on it, probably 8 lbs and a bit, slim profile neck, locking Grovers. In my money it was $1500, but a new Standard here is $3300 and up. Here, it's a good deal.