It's a very sensible purchase (provided you know what the three bugs are).
Don't mislead people about HOW MANY bugs there actually are in the Rigol DS1054z.
I can list 10 without even trying hard....
How many of those affect people who simply hook up the probes and look at waveforms?
The pulse count can be wrong, the math functions don't always work, and....?
Well you don't need left/right blinkers on a car because you never take a turn, you don't need brake light because you never brake, you don't need head lights because you never drive at night, you don't need wipers because you never drive when it rains, you don't need seatbelts because you always drive slow, you don't need airco because you never drive when it is hot... need I continue? I'd love to sell a car to you without a steering wheel; I'll tell you to just lean into the direction you want to go!
If you just want to look at signals get an old DSO from Ebay!