Thanks for your suggestions, I added ZOTEK ZT-702S and Zeeweii DSO1511G, for SCO_2_10M I prefer not to include as there is no much information and is unbranded.
As you speculate my initial intention was to cut a little below USD $200, OWON HDS2102 is on the limit and the new OWON HDS2202 is way above and only included to reflect that there is a successor on this model line.